Merge pull request #18 from cidrblock/skip_changelog

Allow for a PR to not have a change log, use label "skip-changelog"

Author: cidrblock

.github/workflows/changelog.yml

@@ -12,9 +12,13 @@ jobs:
           path: ${{ env.source_directory }}
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: "0"
+        if: "!contains(github.event.pull_request.labels.*.name, 'skip-changelog')"
+
       - name: Ensure a new changelog entry exists
         run: >-
           git show origin/${{ github.event.pull_request.base.ref }}..HEAD
           --name-status
           --oneline |
           grep -E -e "A\s+changelogs/fragments/" -e "M\s+CHANGELOG.rst"
+        if: "!contains(github.event.pull_request.labels.*.name, 'skip-changelog')"
+