Create Labeler workflow

.github/workflows/label.yml

@@ -0,0 +1,21 @@
+# This workflow will triage pull requests and apply a label based on the
+# paths that are modified in the pull request.
+# The paths are set up in .github/labeler.yml
+#
+# See: https://github.com/actions/labeler
+
+name: Labeler
+on: [pull_request_target]
+
+jobs:
+  label:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+    - uses: actions/labeler@v5
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"