Docker image doesn't remove apk virtual package `.build-deps`

[tspearconquest]

az feedback auto-generates most of the information requested below, as of CLI version 2.0.62

Related command

N/A

Describe the bug

Line 38 of the main azure-cli Dockerfile:
https://github.com/Azure/azure-cli/blob/dev/Dockerfile#L38

This line installs a set of packages as a virtual package called .build-deps but nowhere later on in Dockerfile is this virtual package removed.

To Reproduce

Read the Dockerfile in the dev or main branch of this repo

Expected behavior

These tools installed are intended only for building the azure-cli docker image. Generally speaking these packages are not used during the container runtime and are extra data that doesn't need to be in the image. There should be a corresponding apk --no-cache del --no-network .build-deps near the end of the Dockerfile in order to remove these packages.

Removing these packages will reduce the image size.

Environment summary

N/A

Additional context

[yonzhan]

@jiasli for awareness

[bebound]

Close as #27567 is merged.