Remove focal github actions

[iche033]

🦟 Bug fix

Summary

Remove focal github actions for harmonic

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (gz-launch7@27f7d6d). Click here to learn what that means.
The diff coverage is n/a.

❗ Current head 75f4863 differs from pull request most recent head 2a3b568. Consider uploading reports for the commit 2a3b568 to get more accurate results

@@              Coverage Diff              @@
##             gz-launch7     #229   +/-   ##
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  Coverage              ?   58.62%           
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  Files                 ?        3           
  Lines                 ?      423           
  Branches              ?        0           
=============================================
  Hits                  ?      248           
  Misses                ?      175           
  Partials              ?        0