The `chmod` step has been removed from the GitHub Actions workflow for
adding release labels. The script has been made executable in the
repository instead (the file mode is tracked by git).
* feat(action): github action to add release label when PR gets merged
* feat(action): make sure the action only runs for PRs merged in main branch
* fix(action): update labels default color
* fix(action): add check on release label format
* fix(action): type function explicitely
* feat(action): add possibility to extract next release version number from artifact
* fix(action): rename next rc cut number into next semver version
* feat(action): add a github action to create release branch
* fix(action): default branch is develop
* fix(action): specify name of workflow used to create release branch
* fix(action): handle case where artifact doesn't exist
* fix(action): create branch but not the PR
* feat(action): fetch next semver version from release branches name or from package.json
* fix(action): remove unused Create Release Branch action
* fix(action): release branch format was not correct
* feat(action): take tags into account when calculating next version number
* feat(action): add the possibility to force next semver version
* fix(action): update comments
* fix(action): adopt kebak-case instead of snake_case
* fix(action): rename PERSONAL_ACCESS_TOKEN into RELEASE_LABEL_TOKEN
* fix(action): yarn installation not required
* fix(action): yarn install shall be immutable
* fix(action): make the script compatible with ShellCheck
* fix(script): exit script earlier if condition is met
* fix(action): use closingIssuesReferences instead of timeline events
* fix(action): add execute permissions to script
* fix(action): remove duplicate comment
