Add version tag triggers to GitHub Actions Docker workflow

[Copilot]

The GitHub Actions workflow for building Docker images only triggered on main branch pushes, while the CircleCI release workflow builds versioned artifacts on tag pushes. This PR aligns the GitHub Actions behavior with CircleCI.

Changes

• Added tag trigger: Workflow now triggers on tags: ['v*'] pattern
• Integrated docker/metadata-action: Automatically generates appropriate tags based on trigger type:
  • Tag push: v1.0.0, sha-<commit>
  • Branch push: main, sha-<commit>, latest
• Replaced manual tagging: Uses metadata action outputs instead of hardcoded tag list

Example

When a version tag v1.0.0 is pushed, the workflow will now build and push:

lifted/alberto:v1.0.0
lifted/alberto:sha-abc123def

Previously, only commits to main triggered builds with latest and SHA tags.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.34%. Comparing base (2910444) to head (64a8f75).

Additional details and impacted files

@@                   Coverage Diff                   @@
##           feature/github-actions     #180   +/-   ##
=======================================================
  Coverage                   43.34%   43.34%           
=======================================================
  Files                         119      119           
  Lines                        2485     2485           
  Branches                      531      531           
=======================================================
  Hits                         1077     1077           
  Misses                       1275     1275           
  Partials                      133      133           

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