fix typing of search_br_cosmetics overload for multiple being True. Default value isn't required here, since the user need to set that param.

Author: Luc1412

fortnite_api/client.py

@@ -571,7 +571,7 @@ async def fetch_cosmetics_new(
     async def search_br_cosmetics(
         self,
         *,
-        multiple: Literal[True] = True,
+        multiple: Literal[True],
         language: GameLanguage | None = MISSING,
         response_flags: ResponseFlags | None = MISSING,
         search_language: GameLanguage = GameLanguage.ENGLISH,
@@ -1429,7 +1429,7 @@ def fetch_cosmetics_new(
     def search_br_cosmetics(
         self,
         *,
-        multiple: Literal[True] = True,
+        multiple: Literal[True],
         language: GameLanguage | None = MISSING,
         response_flags: ResponseFlags | None = MISSING,
         search_language: GameLanguage = GameLanguage.ENGLISH,