build: bump MTK compat

AayushSabharwal · AayushSabharwal · commit cd8d68de428d · 2025-06-18T20:31:58.000+05:30
diff --git a/test/downstream/Project.toml b/test/downstream/Project.toml
@@ -36,7 +36,7 @@ DelayDiffEq = "5"
 DiffEqCallbacks = "3, 4"
 ForwardDiff = "0.10, 1"
 JumpProcesses = "9.10"
-ModelingToolkit = "10.0"
+ModelingToolkit = "10.0.4"
 ModelingToolkitStandardLibrary = "2.7"
 NonlinearSolve = "2, 3, 4"
 Optimization = "4"
