MAPG-199 fix issues found by PHPStan

src/Util/Geo/Bounds.php

@@ -27,7 +27,7 @@ class Bounds
 
     public static function createDirectly(float $southLat, float $westLng, float $northLat, float $eastLng): Bounds
     {
-        $instance = new static();
+        $instance = new self();
 
         $instance->southLat = $southLat;
         $instance->westLng = $westLng;

src/Util/JwtParser.php

@@ -11,7 +11,7 @@ class JwtParser
         }
     }
 
-    public function setToken(string $token)
+    public function setToken(string $token): void
     {
         $this->token = explode('.', str_replace(['_', '-'], ['/', '+'], $token));
     }