PHPStan fixes

Author: swissspidy

src/Context/FeatureContext.php

@@ -28,8 +28,6 @@
 
 /**
  * Features context.
- *
- * @phpstan-ignore class.implementsDeprecatedInterface
  */
 class FeatureContext implements Context {
 
@@ -803,7 +801,7 @@ public static function create_cache_dir(): string {
 	 * Every scenario gets its own context object.
 	 */
 	public function __construct() {
-		$this->bootstrap_feature_context();
+		self::bootstrap_feature_context();
 
 		if ( getenv( 'WP_CLI_TEST_DBROOTUSER' ) ) {
 			$this->variables['DB_ROOT_USER'] = getenv( 'WP_CLI_TEST_DBROOTUSER' );