Add --all-tags flag to image push

[realrajaryan]

• Closes [Request]: Add -a/--all-tags for container image push #1334.

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation update

Motivation and Context

Adds --all-tags (-a) support to container image push, which pushes all locally tagged versions of a repository in parallel with bounded concurrency (--max-concurrent-uploads, default 3). It continues pushing remaining tags if one fails.

Usage: container image push --all-tags myregistry.io/myimage
Example:

❯ container image push --all-tags ghcr.io/sometest/alltagstest
The push refers to repository [ghcr.io/sometest/alltagstest]
v1: digest: sha256:28a33e0598da2b341d05e53803c5982377039baedfc8a82a4910d5acc4788c99 size: 5 KB
v2: digest: sha256:28a33e0598da2b341d05e53803c5982377039baedfc8a82a4910d5acc4788c99 size: 5 KB
latest: digest: sha256:28a33e0598da2b341d05e53803c5982377039baedfc8a82a4910d5acc4788c99 size: 5 KB

Note: -a on push now means --all-tags, not --arch. --arch remains available as a long-form flag.

Testing

• Tested locally
• Added/updated tests
• Added/updated docs

[github-actions]

Code Coverage

Tier	Line Coverage
Unit	34.53%
Integration	19.8%
Combined	53.71%