use actions/labeler Action instead of tj-actions/changed-files & acti…

…ons/github-script

.github/labeler.yml

@@ -0,0 +1,5 @@
+reviewapps:
+  - changed-files:
+    - all-globs-to-any-file:
+      - '!.github/**/*.yml'
+      - '!**/*.md'

.github/workflows/add-labels.yml

@@ -3,52 +3,19 @@ name: add labels for some cases
 on: pull_request
 
 jobs:
-  reviewapps:
-    name: grant 'reviewapps' label if there are any changes in PR's source code.
+  labeler:
     runs-on: ubuntu-latest  # windows-latest | macos-latest
     if: ${{ ! startsWith(github.head_ref, 'renovate/') }}
     steps:
-      - uses: actions/checkout@v4
-
-      - name: Get changed files
-        id: check-paths-ignore
-        uses: tj-actions/changed-files@v42
-        with:
-          files_ignore: |
-            .github/**/*.yml
-            **.md
-
       # to trigger other Actions caused by adding reviewapp Label
       - name: Generate token
-        if: steps.check-paths-ignore.outputs.any_changed == 'true'
         id: generate_token
         uses: tibdex/github-app-token@v2
         with:
           app_id: ${{ secrets.APP_ID }}
           private_key: ${{ secrets.PRIVATE_KEY }}
 
-      - name: Labeling 'reviewapps' to PR
-        if: steps.check-paths-ignore.outputs.any_changed == 'true'
-        uses: actions/github-script@v7
+      - id: label-the-PR
+        uses: actions/labeler@v5
         with:
-          github-token: ${{ steps.generate_token.outputs.token }}
-          result-encoding: string
-          script: |
-            const targetLabel = 'reviewapps';
-            issue = await github.rest.issues.get({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.issue.number,
-            });
-            flag = false;
-            issue.data.labels.filter(label => {
-              if (label.name == targetLabel) { flag = true; };
-            });
-            if (!flag) {
-              github.rest.issues.addLabels({
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                issue_number: context.issue.number,
-                labels: [targetLabel]
-              });
-            }
+          repo-token: ${{ steps.generate_token.outputs.token }}