Post a Playground link on every PR using the pull_request_target workflow

.github/workflows/pull-request-comments.yml

@@ -4,19 +4,15 @@ name: Pull Request Comments
 on:
   pull_request_target:
     types: [ 'opened' ]
-  workflow_dispatch:
-    inputs:
-      pr_number:
-        description: 'The pull request number to process.'
-        required: true
-        type: string
+    branches:
+      - trunk
+
 
 # Cancels all previous workflow runs for pull requests that have not completed.
 concurrency:
   # The concurrency group contains the workflow name and the branch name for pull requests
   # or the commit hash for any other events.
-  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request_target' && github.head_ref || github.event_name == 'workflow_dispatch' && inputs.pr_number || github.sha }}
-  cancel-in-progress: true
+  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request_target' && github.head_ref || github.event_name == 'workflow_dispatch' && github.event.number || github.sha }}
 
 # Disable permissions for all available scopes by default.
 # Any needed permissions should be configured at the job level.
@@ -31,7 +27,6 @@ jobs:
       pull-requests: write
     timeout-minutes: 5
     if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name == 'pull_request_target' }}
-
     steps:
       - uses: wow-actions/welcome@72817eb31cda1de60f51893d80e2e82ce57f7e76 # v1.3.0
         with:
@@ -87,7 +82,7 @@ jobs:
     permissions:
       issues: write
       pull-requests: write
-    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name == 'workflow_dispatch' }}
+    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name == 'pull_request_target' }}
     steps:
       - uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
         with:
@@ -96,7 +91,7 @@ jobs:
             const commentInfo = {
               owner: context.repo.owner,
               repo: context.repo.repo,
-              issue_number: context.payload.inputs.pr_number
+              issue_number: ${{ github.event.number }}
             };
             const comments = ( await github.rest.issues.listComments( commentInfo ) ).data;
 
@@ -122,7 +117,7 @@ jobs:
 
             For more details about these limitations and more, check out the [Limitations page](https://wordpress.github.io/wordpress-playground/limitations/) in the WordPress Playground documentation.
 
-            [Test this pull request with WordPress Playground](https://playground.wordpress.net/wordpress.html?pr=${ context.payload.inputs.pr_number }).
+            [Test this pull request with WordPress Playground](https://playground.wordpress.net/wordpress.html?pr=${{ github.event.number }}).
             `;
 
             github.rest.issues.createComment( commentInfo );

.github/workflows/test-build-processes.yml

@@ -106,40 +106,14 @@ jobs:
       os: ${{ matrix.os }}
       directory: ${{ matrix.directory }}
 
-  # Calls the Pull Request Commenting workflow to leave a comment detailing how to test the PR within WordPress Playground.
-  playground-comment:
-    name: Leave WordPress Playground details
-    runs-on: ubuntu-latest
-    permissions:
-      actions: write
-    continue-on-error: true
-    needs: [ test-core-build-process, test-core-build-process-macos, test-gutenberg-build-process, test-gutenberg-build-process-macos ]
-    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name == 'pull_request' }}
-
-    steps:
-      - name: Dispatch workflow run
-        uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
-        with:
-          retries: 2
-          retry-exempt-status-codes: 418
-          script: |
-            github.rest.actions.createWorkflowDispatch({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              workflow_id: 'pull-request-comments.yml',
-              ref: 'trunk',
-              inputs: {
-                pr_number: '${{ github.event.number }}'
-              }
-            });
 
   slack-notifications:
     name: Slack Notifications
     uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@trunk
     permissions:
       actions: read
       contents: read
-    needs: [ test-core-build-process, test-core-build-process-macos, test-gutenberg-build-process, test-gutenberg-build-process-macos, playground-comment ]
+    needs: [ test-core-build-process, test-core-build-process-macos, test-gutenberg-build-process, test-gutenberg-build-process-macos ]
     if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' && always() }}
     with:
       calling_status: ${{ contains( needs.*.result, 'cancelled' ) && 'cancelled' || contains( needs.*.result, 'failure' ) && 'failure' || 'success' }}
@@ -154,7 +128,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       actions: write
-    needs: [ playground-comment ]
+    needs: [ slack-notifications ]
     if: |
       always() &&
       github.repository == 'WordPress/wordpress-develop' &&