libpython shared library cannot be found by python3-config on Mac

`python3-config --ldflag` reports `-L/opt/miniconda3/lib/python3.12/config-3.12-darwin -ldl -framework CoreFoundation` on Mac. However, libpython is not included in -L, so linking to the conda python shared library is impossible.

For reference, the brew installed python creates a symlink to libpython in the library returned by python3-config.

```
$ python3.13-config --ldflags
-L/opt/homebrew/opt/python@3.13/Frameworks/Python.framework/Versions/3.13/lib/python3.13/config-3.13-darwin -ldl -framework CoreFoundation

$ ls -lhg /opt/homebrew/opt/python@3.13/Frameworks/Python.framework/Versions/3.13/lib/python3.13/config-3.13-darwin
total 552
-rw-r--r--@ 1 admin 3.5K Feb 4 2025 config.c
-rw-r--r--@ 1 admin 1.7K Feb 4 2025 config.c.in
-rwxr-xr-x@ 1 admin 15K Feb 4 2025 install-sh
lrwxr-xr-x@ 1 admin 15B Feb 4 2025 libpython3.13.a -> ../../../Python
lrwxr-xr-x@ 1 admin 15B Feb 4 2025 libpython3.13.dylib -> ../../../Python
-rw-r--r--@ 1 admin 201K Feb 17 2025 Makefile
-rwxr-xr-x@ 1 admin 8.8K Feb 4 2025 makesetup
-rwxr-xr-x@ 1 admin 2.1K Feb 17 2025 python-config.py
-rw-r--r--@ 1 admin 3.8K Feb 4 2025 python.o
-rw-r--r--@ 1 admin 11K Feb 4 2025 Setup
-rw-r--r--@ 1 admin 954B Feb 4 2025 Setup.bootstrap
-rw-r--r--@ 1 admin 41B Feb 4 2025 Setup.local
-rw-r--r--@ 1 admin 6.6K Feb 4 2025 Setup.stdlib
```

### Conda Info

```shell
active environment : base
active env location : /opt/miniconda3
shell level : 1
user config file : /Users/batty/.condarc
populated config files : /opt/miniconda3/.condarc
/Users/batty/.condarc
conda version : 24.9.2
conda-build version : not installed
python version : 3.12.7.final.0
solver : classic
virtual packages : __archspec=1=m1
__conda=24.9.2=0
__osx=15.7.7=0
__unix=0=0
base environment : /opt/miniconda3 (writable)
conda av data dir : /opt/miniconda3/etc/conda
conda av metadata url : None
channel URLs : https://conda.anaconda.org/conda-forge/osx-arm64
https://conda.anaconda.org/conda-forge/noarch
https://repo.anaconda.com/pkgs/main/osx-arm64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/osx-arm64
https://repo.anaconda.com/pkgs/r/noarch
package cache : /opt/miniconda3/pkgs
/Users/batty/.conda/pkgs
envs directories : /opt/miniconda3/envs
/Users/batty/.conda/envs
platform : osx-arm64
user-agent : conda/24.9.2 requests/2.32.3 CPython/3.12.7 Darwin/24.6.0 OSX/15.7.7 aau/0.4.4 c/. s/. e/.
UID:GID : 501:20
netrc file : None
offline mode : False
```

Note: reposting [https://github.com/conda/conda/issues/16177#issuecomment-4649074170](url)