Update NamedGraphs version constraints

Author: mtfishman

test/Project.toml

@@ -17,7 +17,7 @@ Graphs = "1.13.1"
 ITensorBase = "0.2.12"
 ITensorNetworksNext = "0.1.1"
 NamedDimsArrays = "0.7.14"
-NamedGraphs = "0.6.8"
+NamedGraphs = "0.6.8, 0.7"
 SafeTestsets = "0.1"
 Suppressor = "0.2.8"
 Test = "1.10"