chore: add in changelog enforcer

.github/workflows/changelog-enforcer.yml

@@ -0,0 +1,18 @@
+name: "Pull Request Changelog Enforcer"
+on:
+  pull_request:
+    # The specific activity types are listed here to include "labeled" and "unlabeled"
+    # (which are not included by default for the "pull_request" trigger).
+    # This is needed to allow skipping enforcement of the changelog in PRs with specific labels,
+    # as defined in the (optional) "skipLabels" property.
+    types: [opened, synchronize, reopened, ready_for_review, labeled, unlabeled]
+
+jobs:
+  # Enforces the update of a changelog file on every pull request
+  changelog:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: dangoslen/changelog-enforcer@v3
+      with:
+        changeLogPath: 'CHANGELOG.md'
+        missingUpdateErrorMessage: 'Please ensure you add a line in CHANGELOG.md (matching existing format) detailing your change in ~100 characters or less.'