azure-cli feature installation silently fails if pipx is broken (i.e. when Python version is changed)

When the `pipx` binary is present in the container but broken (which can be reproduced by installing a different Python version), the Azure CLI silently fails to install.

Actual results:
- Build succeeds, but the `az` command is not available.

Expected results:
- Build fails if feature installation fails.

Repro steps:
1. Use the miniconda:0-3 devcontainer image and apply the `ghcr.io/devcontainers/features/azure-cli` feature
2. Create a `environment.yml` which installs a different Python version than used by the base image, for example:
```
name: prompt-flow-env
channels:
- defaults
dependencies:
- python=3.9
- pip
- pip:
- -r requirements.txt
```
3. Rebuild the devcontainer

Docker logs

```
#19 [dev_containers_target_stage 4/7] RUN --mount=type=bind,from=dev_containers_feature_content_source,source=azure-cli_0,target=/tmp/build-features-src/azure-cli_0 cp -ar /tmp/build-features-src/azure-cli_0 /tmp/dev-container-features && chmod -R 0755 /tmp/dev-container-features/azure-cli_0 && cd /tmp/dev-container-features/azure-cli_0 && chmod +x ./devcontainer-features-install.sh && ./devcontainer-features-install.sh && rm -rf /tmp/dev-container-features/azure-cli_0
#19 0.201 ===========================================================================
#19 0.201 Feature : Azure CLI
#19 0.201 Description : Installs the Azure CLI along with needed dependencies. Useful for base Dockerfiles that often are missing required install dependencies like gpg.
#19 0.201 Id : ghcr.io/devcontainers/features/azure-cli
#19 0.201 Version : 1.2.2
#19 0.201 Documentation : https://github.com/devcontainers/features/tree/main/src/azure-cli
#19 0.201 Options :
#19 0.201 VERSION="latest"
#19 0.201 EXTENSIONS=""
#19 0.201 INSTALLBICEP="false"
#19 0.201 INSTALLUSINGPYTHON="false"
#19 0.201 ===========================================================================
#19 0.206 Effective REMOTE_USER: vscode
#19 0.206 (*) Installing Azure CLI...
#19 0.209 (*) No pre-built binaries available in apt-cache. Installing via pip3.
#19 0.216 Running apt-get update...
#19 0.359 Get:1 http://deb.debian.org/debian bullseye InRelease [116 kB]
#19 0.359 Get:2 https://dl.yarnpkg.com/debian stable InRelease [17.1 kB]
#19 0.418 Get:3 https://dl.yarnpkg.com/debian stable/main all Packages [10.9 kB]
#19 0.442 Get:4 https://dl.yarnpkg.com/debian stable/main arm64 Packages [10.9 kB]
#19 0.446 Get:5 http://deb.debian.org/debian-security bullseye-security InRelease [48.4 kB]
#19 0.571 Get:6 http://deb.debian.org/debian bullseye-updates InRelease [44.1 kB]
#19 0.606 Get:7 http://deb.debian.org/debian bullseye/main arm64 Packages [7951 kB]
#19 1.245 Get:8 http://deb.debian.org/debian-security bullseye-security/main arm64 Packages [256 kB]
#19 1.282 Get:9 http://deb.debian.org/debian bullseye-updates/main arm64 Packages [15.1 kB]
#19 1.916 Fetched 8470 kB in 2s (5096 kB/s)
#19 1.916 Reading package lists...
#19 2.198 Reading package lists...
#19 2.490 Building dependency tree...
#19 2.558 Reading state information...
#19 2.630 libffi-dev is already the newest version (3.3-6).
#19 2.630 python3-minimal is already the newest version (3.9.2-3).
#19 2.630 python3-minimal set to manually installed.
#19 2.630 The following additional packages will be installed:
#19 2.630 javascript-common libjs-jquery libjs-sphinxdoc libjs-underscore
#19 2.630 libpython3-dev libpython3.9 libpython3.9-dev python-pip-whl python3-dev
#19 2.630 python3-distutils python3-lib2to3 python3-pkg-resources python3-setuptools
#19 2.630 python3-wheel python3.9-dev python3.9-venv
#19 2.631 Suggested packages:
#19 2.631 apache2 | lighttpd | httpd python-setuptools-doc
#19 2.741 The following NEW packages will be installed:
#19 2.741 javascript-common libjs-jquery libjs-sphinxdoc libjs-underscore
#19 2.741 libpython3-dev libpython3.9 libpython3.9-dev python-pip-whl python3-dev
#19 2.741 python3-distutils python3-lib2to3 python3-pip python3-pkg-resources
#19 2.741 python3-setuptools python3-venv python3-wheel python3.9-dev python3.9-venv
#19 2.834 0 upgraded, 18 newly installed, 0 to remove and 1 not upgraded.
#19 2.834 Need to get 9594 kB of archives.
#19 2.834 After this operation, 33.4 MB of additional disk space will be used.
#19 2.834 Get:1 http://deb.debian.org/debian bullseye/main arm64 javascript-common all 11+nmu1 [6260 B]
#19 2.869 Get:2 http://deb.debian.org/debian bullseye/main arm64 libjs-jquery all 3.5.1+dfsg+~3.5.5-7 [315 kB]
#19 2.976 Get:3 http://deb.debian.org/debian bullseye/main arm64 libjs-underscore all 1.9.1~dfsg-3 [100 kB]
#19 2.985 Get:4 http://deb.debian.org/debian bullseye/main arm64 libjs-sphinxdoc all 3.4.3-2 [127 kB]
#19 2.997 Get:5 http://deb.debian.org/debian bullseye/main arm64 libpython3.9 arm64 3.9.2-1 [1556 kB]
#19 3.107 Get:6 http://deb.debian.org/debian bullseye/main arm64 libpython3.9-dev arm64 3.9.2-1 [3835 kB]
#19 3.424 Get:7 http://deb.debian.org/debian bullseye/main arm64 libpython3-dev arm64 3.9.2-3 [21.7 kB]
#19 3.424 Get:8 http://deb.debian.org/debian bullseye/main arm64 python-pip-whl all 20.3.4-4+deb11u1 [1948 kB]
#19 3.533 Get:9 http://deb.debian.org/debian bullseye/main arm64 python3.9-dev arm64 3.9.2-1 [515 kB]
#19 3.576 Get:10 http://deb.debian.org/debian bullseye/main arm64 python3-lib2to3 all 3.9.2-1 [77.8 kB]
#19 3.576 Get:11 http://deb.debian.org/debian bullseye/main arm64 python3-distutils all 3.9.2-1 [143 kB]
#19 3.584 Get:12 http://deb.debian.org/debian bullseye/main arm64 python3-dev arm64 3.9.2-3 [24.8 kB]
#19 3.587 Get:13 http://deb.debian.org/debian bullseye/main arm64 python3-pkg-resources all 52.0.0-4 [190 kB]
#19 3.594 Get:14 http://deb.debian.org/debian bullseye/main arm64 python3-setuptools all 52.0.0-4 [366 kB]
#19 3.624 Get:15 http://deb.debian.org/debian bullseye/main arm64 python3-wheel all 0.34.2-1 [24.0 kB]
#19 3.626 Get:16 http://deb.debian.org/debian bullseye/main arm64 python3-pip all 20.3.4-4+deb11u1 [337 kB]
#19 3.725 Get:17 http://deb.debian.org/debian bullseye/main arm64 python3.9-venv arm64 3.9.2-1 [5396 B]
#19 3.725 Get:18 http://deb.debian.org/debian bullseye/main arm64 python3-venv arm64 3.9.2-3 [1188 B]
#19 4.183 Fetched 9594 kB in 1s (9779 kB/s)
#19 4.198 Selecting previously unselected package javascript-common.
(Reading database ... 26159 files and directories currently installed.)
#19 4.240 Preparing to unpack .../00-javascript-common_11+nmu1_all.deb ...
#19 4.246 Unpacking javascript-common (11+nmu1) ...
#19 4.257 Selecting previously unselected package libjs-jquery.
#19 4.258 Preparing to unpack .../01-libjs-jquery_3.5.1+dfsg+~3.5.5-7_all.deb ...
#19 4.262 Unpacking libjs-jquery (3.5.1+dfsg+~3.5.5-7) ...
#19 4.287 Selecting previously unselected package libjs-underscore.
#19 4.289 Preparing to unpack .../02-libjs-underscore_1.9.1~dfsg-3_all.deb ...
#19 4.290 Unpacking libjs-underscore (1.9.1~dfsg-3) ...
#19 4.304 Selecting previously unselected package libjs-sphinxdoc.
#19 4.306 Preparing to unpack .../03-libjs-sphinxdoc_3.4.3-2_all.deb ...
#19 4.307 Unpacking libjs-sphinxdoc (3.4.3-2) ...
#19 4.324 Selecting previously unselected package libpython3.9:arm64.
#19 4.325 Preparing to unpack .../04-libpython3.9_3.9.2-1_arm64.deb ...
#19 4.327 Unpacking libpython3.9:arm64 (3.9.2-1) ...
#19 4.424 Selecting previously unselected package libpython3.9-dev:arm64.
#19 4.426 Preparing to unpack .../05-libpython3.9-dev_3.9.2-1_arm64.deb ...
#19 4.427 Unpacking libpython3.9-dev:arm64 (3.9.2-1) ...
#19 4.663 Selecting previously unselected package libpython3-dev:arm64.
#19 4.664 Preparing to unpack .../06-libpython3-dev_3.9.2-3_arm64.deb ...
#19 4.665 Unpacking libpython3-dev:arm64 (3.9.2-3) ...
#19 4.675 Selecting previously unselected package python-pip-whl.
#19 4.676 Preparing to unpack .../07-python-pip-whl_20.3.4-4+deb11u1_all.deb ...
#19 4.677 Unpacking python-pip-whl (20.3.4-4+deb11u1) ...
#19 4.768 Selecting previously unselected package python3.9-dev.
#19 4.770 Preparing to unpack .../08-python3.9-dev_3.9.2-1_arm64.deb ...
#19 4.771 Unpacking python3.9-dev (3.9.2-1) ...
#19 4.786 Selecting previously unselected package python3-lib2to3.
#19 4.788 Preparing to unpack .../09-python3-lib2to3_3.9.2-1_all.deb ...
#19 4.789 Unpacking python3-lib2to3 (3.9.2-1) ...
#19 4.803 Selecting previously unselected package python3-distutils.
#19 4.804 Preparing to unpack .../10-python3-distutils_3.9.2-1_all.deb ...
#19 4.805 Unpacking python3-distutils (3.9.2-1) ...
#19 4.821 Selecting previously unselected package python3-dev.
#19 4.823 Preparing to unpack .../11-python3-dev_3.9.2-3_arm64.deb ...
#19 4.824 Unpacking python3-dev (3.9.2-3) ...
#19 4.834 Selecting previously unselected package python3-pkg-resources.
#19 4.836 Preparing to unpack .../12-python3-pkg-resources_52.0.0-4_all.deb ...
#19 4.837 Unpacking python3-pkg-resources (52.0.0-4) ...
#19 4.857 Selecting previously unselected package python3-setuptools.
#19 4.858 Preparing to unpack .../13-python3-setuptools_52.0.0-4_all.deb ...
#19 4.860 Unpacking python3-setuptools (52.0.0-4) ...
#19 4.889 Selecting previously unselected package python3-wheel.
#19 4.891 Preparing to unpack .../14-python3-wheel_0.34.2-1_all.deb ...
#19 4.892 Unpacking python3-wheel (0.34.2-1) ...
#19 4.903 Selecting previously unselected package python3-pip.
#19 4.904 Preparing to unpack .../15-python3-pip_20.3.4-4+deb11u1_all.deb ...
#19 4.905 Unpacking python3-pip (20.3.4-4+deb11u1) ...
#19 4.935 Selecting previously unselected package python3.9-venv.
#19 4.936 Preparing to unpack .../16-python3.9-venv_3.9.2-1_arm64.deb ...
#19 4.937 Unpacking python3.9-venv (3.9.2-1) ...
#19 4.946 Selecting previously unselected package python3-venv.
#19 4.948 Preparing to unpack .../17-python3-venv_3.9.2-3_arm64.deb ...
#19 4.949 Unpacking python3-venv (3.9.2-3) ...
#19 4.962 Setting up python3-pkg-resources (52.0.0-4) ...
#19 5.059 Setting up javascript-common (11+nmu1) ...
#19 5.069 Setting up python3-wheel (0.34.2-1) ...
#19 5.136 Setting up libpython3.9:arm64 (3.9.2-1) ...
#19 5.139 Setting up python-pip-whl (20.3.4-4+deb11u1) ...
#19 5.142 Setting up libjs-jquery (3.5.1+dfsg+~3.5.5-7) ...
#19 5.147 Setting up python3-lib2to3 (3.9.2-1) ...
#19 5.194 Setting up libjs-underscore (1.9.1~dfsg-3) ...
#19 5.196 Setting up python3-distutils (3.9.2-1) ...
#19 5.259 Setting up python3-setuptools (52.0.0-4) ...
#19 5.438 Setting up libpython3.9-dev:arm64 (3.9.2-1) ...
#19 5.440 Setting up python3-pip (20.3.4-4+deb11u1) ...
#19 5.565 Setting up libjs-sphinxdoc (3.4.3-2) ...
#19 5.568 Setting up python3.9-dev (3.9.2-1) ...
#19 5.570 Setting up python3.9-venv (3.9.2-1) ...
#19 5.592 Setting up libpython3-dev:arm64 (3.9.2-3) ...
#19 5.594 Setting up python3-venv (3.9.2-3) ...
#19 5.597 Setting up python3-dev (3.9.2-3) ...
#19 5.599 Processing triggers for man-db (2.9.4-2) ...
#19 5.682 Processing triggers for libc-bin (2.31-13+deb11u7) ...
#19 5.776 Traceback (most recent call last):
#19 5.776 File "/usr/local/py-utils/bin/pipx", line 5, in
#19 5.776 from pipx.main import cli
#19 5.776 ModuleNotFoundError: No module named 'pipx'
#19 5.777 Could not install azure-cli via pip3
#19 5.778 (*) Attempting to install globally with pipx...
#19 5.778 declare -x DEBIAN_FRONTEND="noninteractive"
#19 5.778 declare -x EXTENSIONS=""
#19 5.778 declare -x HOME="/root"
#19 5.778 declare -x INSTALLBICEP="false"
#19 5.778 declare -x INSTALLUSINGPYTHON="false"
#19 5.778 declare -x LANG="C.UTF-8"
#19 5.778 declare -x LC_ALL="C.UTF-8"
#19 5.778 declare -x NVM_DIR="/usr/local/share/nvm"
#19 5.778 declare -x NVM_SYMLINK_CURRENT="true"
#19 5.778 declare -x OLDPWD="/"
#19 5.778 declare -x PATH="/usr/local/python/current/bin:/usr/local/py-utils/bin:/usr/local/share/nvm/current/bin:/opt/conda/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
#19 5.778 declare -x PIPX_BIN_DIR="/usr/local/bin"
#19 5.778 declare -x PIPX_HOME="/usr/local/pipx"
#19 5.778 declare -x PIP_CACHE_DIR="/tmp/pip-tmp/cache"
#19 5.778 declare -x PWD="/tmp/dev-container-features/azure-cli_0"
#19 5.778 declare -x PYTHONUSERBASE="/tmp/pip-tmp"
#19 5.778 declare -x PYTHON_PATH="/usr/local/python/current"
#19 5.778 declare -x SHLVL="1"
#19 5.778 declare -x VERSION="11 (bullseye)"
#19 5.778 declare -x _CONTAINER_USER="root"
#19 5.778 declare -x _CONTAINER_USER_HOME="/root"
#19 5.778 declare -x _REMOTE_USER="vscode"
#19 5.778 declare -x _REMOTE_USER_HOME="/home/vscode"
#19 5.778 declare -- ver=""
#19 5.786 Traceback (most recent call last):
#19 5.786 File "/usr/local/py-utils/bin/pipx", line 5, in
#19 5.786 from pipx.main import cli
#19 5.786 ModuleNotFoundError: No module named 'pipx'
#19 5.788 (*) Finished installing globally with pipx.
#19 5.788 Installing Azure CLI extensions:
#19 5.792 Done!
#19 DONE 5.8s
```

This is easier to trigger on Apple Silicon, I suspect because there's no pre-packaged azure-cli in the repo so it falls back to the pipx installation procedure.

Note that explicitly requesting the `ghcr.io/devcontainers/features/python:1` feature in the end-user's devcontainer.json (in hopes it re-runs the pipx installation sequence that was originally run during te miniconda image setup) has no effect as the [install.sh](https://github.com/devcontainers/features/blob/3ea4d6bbd7864bcf7b5a91fdeeb66e4f5a6f46c0/src/python/install.sh#L445) checks for the presence of the pipx command, which *does* exist (it just doesn't execute).