feat(Actions): Automatically add labels on PRs (#3571)

.github/workflows/labeler.yml

@@ -0,0 +1,16 @@
+# Workflow to associate labels automatically
+name: labeler
+# Trigger the workflow on pull request events
+on: [pull_request]
+jobs:
+  label:
+    runs-on: ubuntu-20.04
+    steps:
+      # We need to checkout the repository to access the configured file (.github/label-pr.yml)
+      - uses: actions/checkout@v2
+      - name: Labeler
+        uses: docker://decathlon/pull-request-labeler-action:2.0.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # Here we can override the path for the action configuration. If none is provided, default one is `.github/label-pr.yml`
+          CONFIG_PATH: ${{ secrets.GITHUB_WORKSPACE }}/.github/label-pr.yml