Add versioning.yml workflow file

This workflow file ensures the major version tags are kept up to date.

.github/workflows/versioning.yml

@@ -0,0 +1,15 @@
+name: Update version tag
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  actions-tagger:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: Actions-R-Us/actions-tagger@latest
+        with:
+          publish_latest: true
+        env:
+          GITHUB_TOKEN: '${{secrets.GITHUB_TOKEN}}'