Update Project.toml

Author: ChrisRackauckas

Project.toml

@@ -87,7 +87,7 @@ ArrayInterface = "6, 7"
 BifurcationKit = "0.4"
 BlockArrays = "1.1"
 BoundaryValueDiffEqAscher = "1.6.0"
-BoundaryValueDiffEqMIRK = "1.8.0"
+BoundaryValueDiffEqMIRK = "1.7.0"
 CasADi = "1.0.6"
 ChainRulesCore = "1"
 Combinatorics = "1"