raise compat for Colors v0.13 (#90)

Author: schillic

Project.toml

@@ -18,7 +18,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 StarAlgebras = "0c0c59c1-dc5f-42e9-9a8b-b5dc384a6cd1"
 
 [compat]
-Colors = "0.12"
+Colors = "0.12 - 0.13"
 CommonSolve = "0.2"
 MultivariateBases = "0.2"
 MultivariatePolynomials = "0.5"