MAPG-199 fix issues found by PHPStan

src/Interfaces/Request/IRequest.php

@@ -4,7 +4,7 @@ use MapGuesser\Interfaces\Authentication\IUser;
 
 interface IRequest
 {
-    public function setParsedRouteParams(array &$routeParams);
+    public function setParsedRouteParams(array &$routeParams): void;
 
     public function getBase(): string;