networkx: Update approximation/connectivity.pyi (#14662)

Author: MeGaGiGaGon

stubs/networkx/networkx/algorithms/approximation/connectivity.pyi

@@ -1,4 +1,3 @@
-from _typeshed import Incomplete
 from collections.abc import Iterable
 
 from networkx.classes.graph import Graph, _Node
@@ -7,10 +6,10 @@ from networkx.utils.backends import _dispatchable
 __all__ = ["local_node_connectivity", "node_connectivity", "all_pairs_node_connectivity"]
 
 @_dispatchable
-def local_node_connectivity(G: Graph[_Node], source: _Node, target: _Node, cutoff: int | None = None): ...
+def local_node_connectivity(G: Graph[_Node], source: _Node, target: _Node, cutoff: float | None = None) -> float: ...
 @_dispatchable
-def node_connectivity(G: Graph[_Node], s: _Node | None = None, t: _Node | None = None): ...
+def node_connectivity(G: Graph[_Node], s: _Node | None = None, t: _Node | None = None) -> float: ...
 @_dispatchable
 def all_pairs_node_connectivity(
-    G: Graph[_Node], nbunch: Iterable[Incomplete] | None = None, cutoff: int | None = None
-) -> dict[Incomplete, dict[Incomplete, Incomplete]]: ...
+    G: Graph[_Node], nbunch: Iterable[_Node] | None = None, cutoff: float | None = None
+) -> dict[_Node, dict[_Node, float]]: ...