Unable to build simple app image - following steps from blog

Hello,

**What steps did you take:**

I was following along the steps mentioned in the "Deploying Kubernetes Applications with ytt, kbld, and kapp" [blog](https://carvel.dev/blog/deploying-apps-with-ytt-kbld-kapp/).

**What happened:**

Under the "Building container images locally" [section](https://carvel.dev/blog/deploying-apps-with-ytt-kbld-kapp/#building-container-images-locally), the command to build the simple app image is listed as
```
$ kapp deploy -a simple-app -c -f <(ytt -f config-step-3-build-local/ -v hello_msg=friend | kbld -f-)
```
But I am seeing the following build error while running this command:
```
1:36:59PM: ongoing: reconcile deployment/simple-app (apps/v1) namespace: default
1:36:59PM: ^ Waiting for 1 unavailable replicas
1:36:59PM: L ok: waiting on replicaset/simple-app-7db87685bd (apps/v1) namespace: default
1:36:59PM: L ok: waiting on replicaset/simple-app-78d7ff4f98 (apps/v1) namespace: default
1:36:59PM: L ok: waiting on replicaset/simple-app-59f9fb6ff6 (apps/v1) namespace: default
1:36:59PM: L ok: waiting on replicaset/simple-app-59b5c7ff8d (apps/v1) namespace: default
1:36:59PM: L ongoing: waiting on pod/simple-app-7db87685bd-4h8p8 (v1) namespace: default
1:36:59PM: ^ Pending: ErrImagePull (message: rpc error: code = Unknown desc = failed to pull and unpack image "docker.io/library/kbld:docker-io-dkalinin-k8s-simple-app-sha256-ebcc4c1710480262a12cd3d7caaa21bfe9d79a1688c6bc9fd2fffe7ef8d0017b": failed to resolve reference "docker.io/library/kbld:docker-io-dkalinin-k8s-simple-app-sha256-ebcc4c1710480262a12cd3d7caaa21bfe9d79a1688c6bc9fd2fffe7ef8d0017b": pull access denied, repository does not exist or may require authorization: server message: insufficient_scope: authorization failed)
```

See full logs here - [deploy-err.txt](https://github.com/carvel-dev/kapp/files/11006173/deploy-err.txt)

**What did you expect:**

Successful build of the app image as mentioned in the blog.

**Anything else you would like to add:**
None

**Environment:**

- kapp version (use `kapp --version`):
```
$ kapp --version
kapp version 0.45.0
```

- OS (e.g. from `/etc/os-release`):
```
$ sw_vers
ProductName: macOS
ProductVersion: 13.0.1
BuildVersion: 22A400
```

- Kubernetes version (use `kubectl version`)
```
$ kubectl version
WARNING: This version information is deprecated and will be replaced with the output from kubectl version --short. Use --output=yaml|json to get the full version.
Client Version: version.Info{Major:"1", Minor:"26", GitVersion:"v1.26.2", GitCommit:"fc04e732bb3e7198d2fa44efa5457c7c6f8c0f5b", GitTreeState:"clean", BuildDate:"2023-02-22T13:32:21Z", GoVersion:"go1.20.1", Compiler:"gc", Platform:"darwin/amd64"}
Kustomize Version: v4.5.7
Server Version: version.Info{Major:"1", Minor:"25", GitVersion:"v1.25.3", GitCommit:"434bfd82814af038ad94d62ebe59b133fcb50506", GitTreeState:"clean", BuildDate:"2022-10-25T19:35:11Z", GoVersion:"go1.19.2", Compiler:"gc", Platform:"linux/amd64"}
```
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