Check for changes since last tag

.github/workflows/create-release.yml

@@ -19,9 +19,9 @@ jobs:
 
       - name: Changes since last tag
         id: changes
-        uses: jsmith/changes-since-last-tag@v0.4.1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          CHANGES=${git log $(git describe --tags --abbrev=0)..HEAD --no-merges --oneline)
+          if [ -z "$CHANGES" ]; then exit 1; else exit 1; fi
 
       - name: Bump version and push tag
         if: steps.changes.outputs.any_changed == 'true'