CompatHelper: bump compat for "ModelingToolkit" to "4.0" for package models

Author: github-actions[bot]

tutorials/models/Project.toml

@@ -29,7 +29,7 @@ Distributions = "0.23, 0.24"
 Flux = "0.10, 0.11"
 ForwardDiff = "0.10"
 Latexify = "0.13, 0.14"
-ModelingToolkit = "3.10"
+ModelingToolkit = "3.10, 4.0"
 NLsolve = "4.4"
 NeuralPDE = "2"
 Optim = "0.21, 0.22, 1.0"