build(deps): bump korthout/backport-action from 3.4.1 to 4.0.0
Bumps [korthout/backport-action](https://github.com/korthout/backport-action) from 3.4.1 to 4.0.0.
- [Release notes](https://github.com/korthout/backport-action/releases)
- [Commits](https://github.com/korthout/backport-action/compare/d07416681cab29bf2661702f925f020aaa962997...3634249d418881baa47fd6bae694506145f7a61b)
---
updated-dependencies:
- dependency-name: korthout/backport-action
dependency-version: 4.0.0
dependency-type: direct:production
update-type: version-update:semver-major
...
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(cherry picked from commit 7e249c37da995ba7101d86410dc045cae306b2b8)
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