ci: update pull-request labeling action path

This has been moved: angular/dev-infra#3456

(cherry picked from commit 843ca01)

Author: alan-agius4

.github/workflows/dev-infra.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: angular/dev-infra/github-actions/pull-request-labeling@63fd18d4726829e65f6abe6f15c0fe79f63f1dec
+      - uses: angular/dev-infra/github-actions/labeling/pull-request@63fd18d4726829e65f6abe6f15c0fe79f63f1dec
         with:
           angular-robot-key: ${{ secrets.ANGULAR_ROBOT_PRIVATE_KEY }}
   post_approval_changes: