chore(renovate): remove github-actions manager

[Molter73]

Description

The github-actions manager in MintMaker is currently broken due to the application missing the workflows permission in the GH token it uses. This in turn causes all other updates done via this workflow to be broken, in our case, we haven't gotten dockerfile or cargo updates over the last month.

For the time being and until this issue is fixed, we are removing the github-actions manager from our configuration.

Checklist

• Investigated and inspected CI test results
• Updated documentation accordingly

Automated testing

• Added unit tests
• Added integration tests
• Added regression tests

If any of these don't apply, please comment below.

Testing Performed

Run renovate-config-validator and got the following output:

 INFO: Validating .github/renovate.json5
ERROR: Found errors in configuration
       "file": ".github/renovate.json5",
       "errors": [
         {
           "topic": "Configuration Error",
           "message": "Invalid configuration option: rpmVulnerabilityAutomerge"
         },
         {
           "topic": "Configuration Error",
           "message": "The following managers configured in enabledManagers are not supported: \"rpm-lockfile\""
         }
       ]

The two errors are known, the are caused because they are configuration options specific to MintMaker that renovate does not recognize.

[coderabbitai]

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch mauro/renovate/drop-github-actions

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