Build/Test Tools: Fix playground workflow link in PR comment.

Updates the workflow link in the WordPress Playground comment to point to the `test-build-processes.yml` workflow that generates the asset.

Props peterwilsoncc, desrosj.
See #63167.


git-svn-id: https://develop.svn.wordpress.org/trunk@60327 602fd350-edb4-49c9-b593-d223f7449a82

Author: peterwilsoncc

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

@@ -158,7 +158,7 @@ jobs:
             - All changes will be lost when refreshing the page.
             - A fresh instance is created each time the link below is clicked.
             - Every time this pull request is updated, a new ZIP file containing all changes is created. If changes are not reflected in the Playground instance,
-            it's possible that the most recent build failed, or has not completed. Check the [list of workflow runs to be sure](https://github.com/WordPress/wordpress-develop/actions/workflows/wordpress-playground.yml).
+            it's possible that the most recent build failed, or has not completed. Check the [list of workflow runs to be sure](https://github.com/WordPress/wordpress-develop/actions/workflows/test-build-processes.yml).
 
             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.