Bump dangoslen/dependabot-changelog-helper from 3 to 4

Bumps [dangoslen/dependabot-changelog-helper](https://github.com/dangoslen/dependabot-changelog-helper) from 3 to 4.
- [Release notes](https://github.com/dangoslen/dependabot-changelog-helper/releases)
- [Changelog](https://github.com/dangoslen/dependabot-changelog-helper/blob/main/CHANGELOG.md)
- [Commits](dangoslen/dependabot-changelog-helper@v3...v4)

---
updated-dependencies:
- dependency-name: dangoslen/dependabot-changelog-helper
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/dependabot_pr.yml

@@ -56,7 +56,7 @@ jobs:
           commit_options: '--signoff'
 
       - name: Update the changelog
-        uses: dangoslen/dependabot-changelog-helper@v3
+        uses: dangoslen/dependabot-changelog-helper@v4
         with:
           version: 'Unreleased 2.x'