[meta]: Bump TimonVS/pr-labeler-action from 3 to 4 (#203)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/pr-labeler.yml

@@ -7,7 +7,7 @@ jobs:
   pr-labeler:
     runs-on: ubuntu-latest
     steps:
-      - uses: TimonVS/pr-labeler-action@v3
+      - uses: TimonVS/pr-labeler-action@v4
         with:
           configuration-path: .github/pr-labeler.yml # optional, .github/pr-labeler.yml is the default value
         env: