Update gnupg.pyi

Co-authored-by: Tim Vergenz <[email protected]>

Author: lovetox

gnupg.pyi

@@ -864,7 +864,7 @@ class GPG:
         ...
 
     def get_recipients_file(
-        self, fileobj_or_path: Any, extra_args: list[str] | None = ...
+        self, fileobj_or_path: str | ReadableFile, extra_args: list[str] | None = ...
     ) -> list[str]:
         """
         Get the list of recipients for an encrypted message in a file or file-like object.