Fix GitHub Actions on merge to main

[ZachGarcia42]

TL;DR

Updated GitHub Actions workflow for improved caching and tagging strategies. If no bazel changes, Fill Station CI completes in <2 minutes now!!

What changed?

• Modified the disk-cache key to include the architecture matrix value, ensuring separate caches for different architectures.
• Updated the Docker image tagging strategy:
  • Disabled branch-based tagging for the main branch.
  • Enabled branch-based tagging only for non-main branches.

How to test?

1. Trigger the workflow on different branches and architectures.
2. Verify that the disk cache is correctly separated by architecture.
3. Check the generated Docker image tags:
   • Ensure 'latest' tag is only applied on the default branch.
   • Confirm branch-based tags are not created for the main branch.
   • Validate that branch-based tags are created for other branches.

Why make this change?

• To optimize caching by separating caches for different architectures, potentially improving build times.
• To refine the Docker image tagging strategy, ensuring more accurate and meaningful tags for different branches and pull requests.

[ZachGarcia42]

• Fix GitHub Actions on merge to main #51 👈
• main

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[graphite-app]

Graphite Automations

"Request reviewers once CI passes" took an action on this PR • (09/25/24)

1 reviewer was added to this PR based on Zach Garcia's automation.

[ZachGarcia42]

Merge activity

• Sep 25, 2:41 PM EDT: @ZachGarcia42 merged this pull request with Graphite.