chore(deps): update ardalanamini/auto-changelog action to v4

Author: renovate[bot]

.github/workflows/fdroid_release.yaml

@@ -52,7 +52,7 @@ jobs:
             # Build Changelog
             -   name: Build Changelog
                 id: build_changelog
-                uses: ardalanamini/auto-changelog@v3
+                uses: ardalanamini/auto-changelog@v4
                 with:
                     mention-authors: false
                     mention-new-contributors: true