Restore: .gitignore changes for 8a82e67

git-svn-id: https://develop.svn.wordpress.org/branches/fixes-64393-restore-version-history@62124 602fd350-edb4-49c9-b593-d223f7449a82

Author: dmsnell

.gitignore

@@ -23,6 +23,7 @@ wp-tests-config.php
 /gutenberg
 /tests/phpunit/build
 /wp-cli.local.yml
+/phpstan.neon
 /jsdoc
 /composer.lock
 /vendor