Bump OMEinsum lower compat bound

Author: CompatHelper Julia

Project.toml

@@ -29,7 +29,7 @@ Distributions = "0.25"
 Graphs = "1"
 IterTools = "1.4"
 MetaGraphs = "0.7, 0.8"
-OMEinsum = "0.7, 0.8, 0.9"
+OMEinsum = "0.8, 0.9"
 PrettyTables = "2.2, 3"
 SimpleTraits = "0.9"
 SimpleValueGraphs = "0.4"