Improve PHPUnit test infrastructure for the Plugin Directory.

Add a dedicated wp-env test configuration so Plugin Directory tests
run in the tests-cli container with PHPUnit 11 and Yoast Polyfills.

Props dd32, obenland.
Closes WordPress#588


git-svn-id: https://meta.svn.wordpress.org/sites/trunk@14810 74240141-8908-4e6f-9713-ba540dce6ec7

Author: obenland

.github/workflows/unit-tests.yml

@@ -68,8 +68,8 @@ jobs:
             phpunit-args: "--no-configuration --bootstrap phpunit/bootstrap.php phpunit/tests/"
           - name: Plugin Directory
             working-directory: environments
-            wp-env-args: "--config plugin-directory/.wp-env.json"
-            container: cli
+            wp-env-args: "--config plugin-directory/.wp-env.test.json"
+            container: tests-cli
             plugin-name: plugin-directory
     steps:
       - uses: actions/checkout@v4

.gitignore

@@ -1,3 +1,4 @@
 node_modules/
 vendor/
+.phpunit.result.cache
 .svn/

composer.json

@@ -12,7 +12,9 @@
 		"dealerdirect/phpcodesniffer-composer-installer": "^1.0.0",
 		"wp-coding-standards/wpcs": "^3.3.0",
 		"phpcompatibility/phpcompatibility-wp": "*",
-		"sirbrillig/phpcs-changed": "^2.12.0"
+		"sirbrillig/phpcs-changed": "^2.12.0",
+		"phpunit/phpunit": "^11.0",
+		"yoast/phpunit-polyfills": "^4.0"
 	},
 	"scripts": {
 		"lint": "phpcs",