fix method signature

Author: tdstein

src/posit/connect/jobs.py

@@ -143,7 +143,7 @@ def __init__(self, ctx: Context, path: str, pathinfo: str = "jobs", uid: str = "
         """
         super().__init__(ctx, path, pathinfo, uid)
 
-    def _create_instance(self, path: str, pathinfo: str, **kwargs: Any) -> Job:
+    def _create_instance(self, path: str, pathinfo: str, /, **kwargs: Any) -> Job:
         """Creates a Job instance.
 
         Parameters