ci: pin PR labeler to allowlisted 1.3.0 commit (#265)

Signed-off-by: Swarom Muley <smuley@nvidia.com>

Author: svvarom

.github/workflows/label-pr.yaml

@@ -14,7 +14,7 @@ jobs:
     name: Apply conventional-commit label
     runs-on: ubuntu-latest
     steps:
-      - uses: ytanikin/pr-conventional-commits@6ac1cea04190fc076b0e539025501d7e7d241ac1 # 1.4.0
+      - uses: ytanikin/pr-conventional-commits@b628c5a234cc32513014b7bfdd1e47b532124d98 # 1.3.0
         with:
           task_types: '["feat","fix","docs","style","refactor","perf","test","build","ci","chore","revert","cp"]'
           add_label: 'true'