fix(client): loosen auth header validation

Author: stainless-app[bot]

src/imagekitio/_client.py

@@ -221,9 +221,7 @@ def default_headers(self) -> dict[str, str | Omit]:
 
     @override
     def _validate_headers(self, headers: Headers, custom_headers: Headers) -> None:
-        if self.private_key and self.password and headers.get("Authorization"):
-            return
-        if isinstance(custom_headers.get("Authorization"), Omit):
+        if headers.get("Authorization") or isinstance(custom_headers.get("Authorization"), Omit):
             return
 
         raise TypeError(
@@ -485,9 +483,7 @@ def default_headers(self) -> dict[str, str | Omit]:
 
     @override
     def _validate_headers(self, headers: Headers, custom_headers: Headers) -> None:
-        if self.private_key and self.password and headers.get("Authorization"):
-            return
-        if isinstance(custom_headers.get("Authorization"), Omit):
+        if headers.get("Authorization") or isinstance(custom_headers.get("Authorization"), Omit):
             return
 
         raise TypeError(