ci(check-urls): fix push crash on new branch creation + render awesome_bot report (#7046)

* format: expand events

* format: add blank lines between steps of check job

* format: to run steps using multiline format

* feat: group for each output

* fix: solve crash on first push (trilom 2 tj action)

* chore: upload ab-results as `awesomebot-results.zip` artifact

* feat: changed files as workflow output

* feat: Generate GitHub Summary using `ab-results-*.json`s

* security: limit access rights with `contents: read`

Seen at PR #7043
Cherry picked from 50300ca119

Co-authored-by: Alex <93376818+sashashura@users.noreply.github.com>

* chore: setup concurrency policy

* chore: modularize using composite actions

Co-authored-by: Alex <93376818+sashashura@users.noreply.github.com>

.github/workflows/check-urls.yml

@@ -1,24 +1,81 @@
 name: Check URLs from changed files
-on: [push, pull_request]
+
+on:
+  push:
+  pull_request:
+
 permissions:
   contents: read
+
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref || github.run_id }}'
+  cancel-in-progress: true
+
 jobs:
-  job:
-    permissions:
-      # Needed for the 'trilom/file-changes-action' action
-      pull-requests: read
+  check-urls:
     runs-on: ubuntu-latest
+
+    outputs:
+      changed-files: ${{ steps.changed-files.outputs.all_changed_files }}
+
     steps:
+
+# NOTE: tj-actions/changed-files.
+# For push events you need to include fetch-depth: 0 | 2 depending on your use case.
+#  0: retrieve all history for all branches and tags
+#  1: retrieve current commit (by default)
+#  2: retrieve the preceding commit
+      - name: Determine workflow parameters
+        id: init-params
+        run: |
+          echo "::set-output name=fetch_depth::0";
+          if [ "${{ github.event_name }}" == "pull_request" ]; then
+            echo "::set-output name=fetch_depth::1";
+          fi
+
       - uses: actions/checkout@v3
-      - uses: trilom/file-changes-action@v1.2.4
-        id: file_changes
         with:
-          output: ''
+          fetch-depth: ${{ steps.init-params.outputs.fetch_depth }}
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v29.0.1
+        with:
+          separator: " "
+
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 2.6
-      - run: gem install awesome_bot
-      - run: for i in ${{ steps.file_changes.outputs.files_modified }}; do echo; echo "processing $i"; awesome_bot $i --allow-redirect --allow-dupe --allow-ssl || true; done
+
+      - run: |
+          gem install awesome_bot
+
+      - name: Check each changed file
+        run: |
+          # Set field separator
+          IFS=$' ';
+
+          # Processing loop
+          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
+            echo;
+            echo "::group::Processing file... $file";
+            awesome_bot "$file" --allow-redirect --allow-dupe --allow-ssl || true;
+            echo "::endgroup::";
+          done
+
+          # Unset field separator
+          unset IFS;
+
       - uses: actions/upload-artifact@v3
         with:
-          path: ${{ github.workspace }}/*.json
+          name: awesomebot-results
+          path: ${{ github.workspace }}/ab-results-*.json
+
+      - name: Generate Summary Report using AwesomeBot results
+        uses: ./.github/actions/awesomebot-gh-summary-action
+        with:
+          ab-root: ${{ github.workspace }}
+          files: ${{ steps.changed-files.outputs.all_changed_files }}
+          separator: " "
+          append-heading: ${{ true }}