Update mikepenz/release-changelog-builder-action action to v6

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/release.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Build changelog from PRs with labels
         if: startsWith(github.ref, 'refs/tags/v')
         id: build_changelog
-        uses: mikepenz/release-changelog-builder-action@v5
+        uses: mikepenz/release-changelog-builder-action@v6
         with:
           configuration: ".github/changelog-configuration.json"
           # PreReleases still get a changelog, but the next full release gets a diff since the last full release,