Build/Test: Fix documentation that describes each step in coding standard and phpstan workflows.

Props khokansardar, jorbin.
See #64894. Fixes #65391.


git-svn-id: https://develop.svn.wordpress.org/trunk@62500 602fd350-edb4-49c9-b593-d223f7449a82

Author: aaronjorbin

.github/workflows/reusable-coding-standards-php.yml

@@ -29,6 +29,7 @@ jobs:
   # Performs the following steps:
   # - Checks out the repository.
   # - Sets up PHP.
+  # - Gets last Monday's date for use in cache keys.
   # - Configures caching for PHPCS scans.
   # - Installs Composer dependencies.
   # - Make Composer packages available globally.

.github/workflows/reusable-phpstan-static-analysis-v1.yml

@@ -23,11 +23,14 @@ jobs:
   #
   # Performs the following steps:
   # - Checks out the repository.
+  # - Sets up Node.js.
   # - Sets up PHP.
-  # - Installs Composer dependencies.
   # - Logs debug information.
-  # - Configures caching for PHP static analysis scans.
+  # - Installs Composer dependencies.
   # - Make Composer packages available globally.
+  # - Installs npm dependencies.
+  # - Builds WordPress.
+  # - Configures caching for PHPStan static analysis scans.
   # - Runs PHPStan static analysis (with Pull Request annotations).
   # - Saves the PHPStan result cache.
   # - Ensures version-controlled files are not modified or deleted.