stdlib: fix many attributes which are read-only at runtime but read-write in the stub (#7395)

stdlib/hmac.pyi

@@ -26,7 +26,8 @@ else:
 class HMAC:
     digest_size: int
     block_size: int
-    name: str
+    @property
+    def name(self) -> str: ...
     def __init__(self, key: bytes, msg: ReadableBuffer | None = ..., digestmod: _DigestMod = ...) -> None: ...
     def update(self, msg: ReadableBuffer) -> None: ...
     def digest(self) -> bytes: ...