Apply suggestions from code review

Co-authored-by: Weston Ruter <westonruter@gmail.com>

Author: gziolo

src/wp-includes/class-wp-connector-registry.php

@@ -61,8 +61,10 @@ final class WP_Connector_Registry {
 	 *         @type string      $method          Required. The authentication method: 'api_key' or 'none'.
 	 *         @type string|null $credentials_url Optional. URL where users can obtain API credentials.
 	 *     }
-	 *     @type array  $plugin         Optional. Plugin data for install/activate UI.
-	 *         @type string $slug       The WordPress.org plugin slug.
+	 *     @type array  $plugin {
+	 *         Optional. Plugin data for install/activate UI.
+	 *
+	 *         @type string $slug The WordPress.org plugin slug.
 	 *     }
 	 * }
 	 * @return array|null The registered connector data on success, null on failure.

tests/phpunit/tests/connectors/wpConnectorRegistry.php

@@ -5,22 +5,23 @@
  * @covers WP_Connector_Registry
  *
  * @group connectors
+ *
+ * @phpstan-import-type Connector from WP_Connector_Registry
  */
 class Tests_Connectors_WpConnectorRegistry extends WP_UnitTestCase {
 
 	/**
 	 * Connector registry instance.
-	 *
-	 * @var WP_Connector_Registry
 	 */
-	private $registry = null;
+	private WP_Connector_Registry $registry;
 
 	/**
 	 * Default valid connector args for testing.
 	 *
-	 * @var array
+	 * @var array<string, mixed>
+	 * @phpstan-var Connector
 	 */
-	private static $default_args = array();
+	private static array $default_args;
 
 	/**
 	 * Set up each test method.