Update OrdinaryDiffEqCore requirement from 1.19.0, 2 to 1.19.0, 2, 3.1

Updates the requirements on [OrdinaryDiffEqCore](https://github.com/SciML/OrdinaryDiffEq.jl) to permit the latest version.

Updates `OrdinaryDiffEqCore` to 3.1.0
- [Release notes](https://github.com/SciML/OrdinaryDiffEq.jl/releases)
- [Commits](https://github.com/SciML/OrdinaryDiffEq.jl/commits/v3.1.0)

---
updated-dependencies:
- dependency-name: OrdinaryDiffEqCore
  dependency-version: 3.1.0
  dependency-type: direct:production
  dependency-group: all-julia-packages
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Project.toml

@@ -21,7 +21,7 @@ DataStructures = "0.18.22, 0.19"
 DiffEqBase = "6.165.1"
 ExplicitImports = "1"
 ModelingToolkit = "10"
-OrdinaryDiffEqCore = "1.19.0, 2"
+OrdinaryDiffEqCore = "1.19.0, 2, 3.1"
 OrdinaryDiffEqLowOrderRK = "1.7"
 OrdinaryDiffEqTsit5 = "1.1.0"
 PrecompileTools = "1.0"