Enhance annotation of add_weighted_edges_from()

Enhance annotation of add_weighted_edges_from(...)
in networkx.algorithms.planarity to match
the (also enhanced) annotation of the
add_weighted_edges_from(...) method
in networkx.classees.graph

Author: GBognar

stubs/networkx/networkx/algorithms/planarity.pyi

@@ -1,3 +1,4 @@
+from decimal import Decimal
 from _typeshed import Incomplete, Unused
 from collections.abc import Generator, Iterable, Mapping, MutableSet, Reversible
 from typing import NoReturn
@@ -109,5 +110,5 @@ class PlanarEmbedding(DiGraph[_Node]):
     def add_edge(self, u_of_edge: _Node, v_of_edge: _Node, **attr: Unused) -> NoReturn: ...
     def add_edges_from(self, ebunch_to_add: Iterable[_EdgePlus[_Node]], **attr: Unused) -> NoReturn: ...
     def add_weighted_edges_from(
-        self, ebunch_to_add: Iterable[tuple[_Node, _Node, float]], weight: str = "weight", **attr: Unused
+        self, ebunch_to_add: Iterable[tuple[_Node, _Node, float|Decimal|None]], weight: str = "weight", **attr: Unused
     ) -> NoReturn: ...