Improve build-container action

[javanlacerda]

Summary

It improves the build container action by adding a tag with the format 0.YYYYMMDD.NNNN-ref.GITSHA.
It also adds the labels commit-hash and breaking-change labels to the container.

Example of workflow execution https://github.com/javanlacerda/rekor/actions/runs/11330765360/job/31509291276

Release Note

Documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.41%. Comparing base (488eb97) to head (d2c3a25).
Report is 210 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2247       +/-   ##
===========================================
- Coverage   66.46%   51.41%   -15.05%     
===========================================
  Files          92      192      +100     
  Lines        9258    19590    +10332     
===========================================
+ Hits         6153    10073     +3920     
- Misses       2359     8426     +6067     
- Partials      746     1091      +345     

Flag	Coverage Δ
e2etests	49.58% <ø> (+2.02%)	⬆️
unittests	43.03% <ø> (-4.66%)	⬇️

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[haydentherapper]

Left comments on the fulcio PR, let’s resolve them there first then copy over changes here