fix(controller): Change player save method to update in OtisRequestsController

Author: TheMeinerLP

backend/src/main/java/net/onelitefeather/otis/controller/OtisRequestsController.java

@@ -177,7 +177,7 @@ public HttpResponse<OtisPlayerDTO> update(@Valid UUID owner, @Valid OtisPlayerDT
         otisPlayer.setProfileTexture(playerDTO.profileTextures());
         otisPlayer.setLocale(playerDTO.locale());
 
-        OtisPlayer saved = repository.save(otisPlayer);
+        OtisPlayer saved = repository.update(otisPlayer);
         return HttpResponse.ok(saved.toDto());
     }