dj_database_url: make all keys optional in _DBConfig TypedDict (#7979)

Co-authored-by: Xavier Francisco <[email protected]>

Author: XF-FW

stubs/dj-database-url/dj_database_url.pyi

@@ -4,17 +4,15 @@ from typing_extensions import TypedDict
 DEFAULT_ENV: str
 SCHEMES: dict[str, str]
 
-class _DBConfigBase(TypedDict):
+class _DBConfig(TypedDict, total=False):
+    ENGINE: str
     NAME: str
-
-class _DBConfig(_DBConfigBase, total=False):
     USER: str
     PASSWORD: str
     HOST: str
     PORT: str
     CONN_MAX_AGE: int
     OPTIONS: dict[str, Any]
-    ENGINE: str
 
 def parse(url: str, engine: str | None = ..., conn_max_age: int = ..., ssl_require: bool = ...) -> _DBConfig: ...
 def config(