More refinement.

.github/workflows/phpunit-tests.yml

@@ -26,12 +26,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.sha }}
   cancel-in-progress: true
 
-env:
-  PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: ${{ true }}
-  # Controls which npm script to use for running PHPUnit tests. Options ar `php` and `php-composer`.
-  PHPUNIT_SCRIPT: php
-  LOCAL_PHP_MEMCACHED: ${{ false }}
-  SLOW_TESTS: 'external-http,media,restapi'
+# Disable permissions for all available scopes by default.
+# Any needed permissions should be configured at the job level.
+permissions: {}
 
 jobs:
   # Runs the PHPUnit tests for WordPress.
@@ -61,8 +58,7 @@ jobs:
     uses: desrosj/wordpress-develop/.github/workflows/reusable-phpunit-tests.yml@try/5.8-make-workflows-callable
     permissions:
       contents: read
-    secrets:
-        inherit
+    secrets: inherit
     if: ${{ github.repository == 'WordPress/wordpress-develop' || github.event_name == 'pull_request' }}
     strategy:
       fail-fast: false