ci: merge doc label actor and checker tasks (#3252)

.github/workflows/doc-label.yml

@@ -29,3 +29,8 @@ jobs:
         body: |
           A document change request is generated from
           ${{ github.event.issue.html_url || github.event.pull_request.html_url }}
+    - name: Check doc labels
+      uses: docker://agilepathway/pull-request-label-checker:latest
+      with:
+        one_of: Doc update required,Doc not needed
+        repo_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/user-doc-label-checker.yml

@@ -1,19 +0,0 @@
-name: Check user doc labels
-on:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - labeled
-      - unlabeled
-
-jobs:
-
-  check_labels:
-    name: Check doc labels
-    runs-on: ubuntu-latest
-    steps:
-      - uses: docker://agilepathway/pull-request-label-checker:latest
-        with:
-          one_of: Doc update required,Doc not needed
-          repo_token: ${{ secrets.GITHUB_TOKEN }}