Fix unsafe change to revert never ending test

Author: schloerke

src/posit/connect/env.py

@@ -183,7 +183,7 @@ def update(self, other=(), /, **kwargs: Optional[str]):
             for key in other:
                 d[key] = other[key]
         elif hasattr(other, "keys"):
-            for key in other:
+            for key in other.keys():  # noqa: SIM118
                 d[key] = other[key]
         else:
             for key, value in other: