Use pr label action

Author: Kartik Raj

.github/workflows/pr-labels.yml

@@ -13,9 +13,12 @@ jobs:
     name: 'Classify PR'
     runs-on: ubuntu-latest
     steps:
-      - name: 'PR impact specified'
-        uses: mheap/github-action-required-labels@v4
+      - name: Checkout Actions
+        uses: actions/checkout@v3
         with:
-          mode: exactly
-          count: 1
-          labels: 'bug, debt, feature-request, no-changelog'
+          repository: 'microsoft/vscode-python-engineering'
+          path: ./actions
+      - name: Install Actions
+        run: npm install --production --prefix ./actions
+      - name: Classify PR
+        uses: ./actions/pr-labels