ci: remove unused release plugins

[MikeMcC399]

This PR follows on from #722 (comment) which proposes to remove extra_plugins from the workflow. These plugins were inactive since the configuration was incomplete.

Changes

The following changes are made to .github/workflows/main.yml using the GitHub JavaScript action-for-semantic-release called by cycjimmy/semantic-release-action@v3:

1. Remove the extra_plugins: parameter containing

          extra_plugins: |
            @semantic-release/git
            @semantic-release/changelog

2. Change the branch parameter to branches. The branch parameter is only officially supported for semantic-release v16 and earlier. The workflow currently already uses v19.0.5 and there is no guarantee that future versions of the action will continue to provide an undocumented conversion of the old parameter name to the new parameter name.

Impact

The change should have no impact on the way that the release job of .github/workflows/main.yml carries out its work. This is simply a clean-up.

References

• cycjimmy/semantic-release-action: branches

• cycjimmy/semantic-release-action: extra_plugins

[MikeMcC399]

Due to its nature, this PR will only be tested when the next release takes place.

[github-actions]

🎉 This PR is included in version 5.7.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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