Stricter pyright checks for inifile (#10382)

pyrightconfig.stricter.json

@@ -52,7 +52,6 @@
         "stubs/protobuf",
         "stubs/google-cloud-ndb",
         "stubs/influxdb-client",
-        "stubs/inifile",
         "stubs/passlib",
         "stubs/peewee",
         "stubs/pexpect",

stubs/inifile/inifile.pyi

@@ -45,7 +45,7 @@ class Dialect:
     def linesep(self) -> str | None: ...
     def get_actual_linesep(self) -> str: ...
     def get_strippable_lineseps(self) -> str: ...
-    def kv_serialize(self, key, val: str | None) -> str | None: ...
+    def kv_serialize(self, key: str, val: str | None) -> str | None: ...
     def escape(self, value: str, quote: str | None = ...) -> str: ...
     def unescape(self, value: str) -> str: ...
     def to_string(self, value: bool | float | str) -> str: ...