Add downstream CI for MTK

[ErikQQY]

Fix: #325

Avoid silently breaking MTK functionalities for BVP

[github-actions]

Benchmark Results

	master	f5f205a...	master / f5f205a...
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK2()	0.594 ± 0.013 s	0.586 ± 0.023 s	1.01 ± 0.046
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK3()	14.1 ± 0.7 ms	14.2 ± 0.88 ms	0.993 ± 0.079
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK4()	3.23 ± 0.21 ms	3.29 ± 0.22 ms	0.983 ± 0.09
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK5()	9.63 ± 1.3 ms	9.84 ± 1.3 ms	0.979 ± 0.19
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK6()	1.68 ± 0.3 ms	1.72 ± 0.3 ms	0.975 ± 0.24
Simple Pendulum/IIP/MultipleShooting(10, Tsit5; grid_coarsening = false)	1.88 ± 0.66 ms	1.85 ± 0.66 ms	1.02 ± 0.51
Simple Pendulum/IIP/MultipleShooting(10, Tsit5; grid_coarsening = true)	3.17 ± 0.98 ms	3.12 ± 1 ms	1.02 ± 0.45
Simple Pendulum/IIP/MultipleShooting(100, Tsit5; grid_coarsening = false)	0.0669 ± 0.015 s	0.0672 ± 0.013 s	0.996 ± 0.29
Simple Pendulum/IIP/MultipleShooting(100, Tsit5; grid_coarsening = true)	0.0797 ± 0.021 s	0.0799 ± 0.021 s	0.998 ± 0.37
Simple Pendulum/IIP/Shooting(Tsit5())	0.246 ± 0.085 ms	0.247 ± 0.084 ms	0.997 ± 0.48
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK2()	0.755 ± 0.009 s	0.769 ± 0.025 s	0.982 ± 0.034
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK3()	16.9 ± 4.8 ms	17 ± 4.6 ms	0.994 ± 0.39
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK4()	3.73 ± 0.17 ms	3.74 ± 0.2 ms	0.998 ± 0.069
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK5()	11.1 ± 2 ms	11.2 ± 1.2 ms	0.995 ± 0.2
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK6()	1.92 ± 0.15 ms	1.92 ± 0.2 ms	0.999 ± 0.13
Simple Pendulum/OOP/MultipleShooting(10, Tsit5; grid_coarsening = false)	3.54 ± 3 ms	3.51 ± 3.1 ms	1.01 ± 1.2
Simple Pendulum/OOP/MultipleShooting(10, Tsit5; grid_coarsening = true)	6.03 ± 5.2 ms	5.96 ± 5.3 ms	1.01 ± 1.2
Simple Pendulum/OOP/MultipleShooting(100, Tsit5; grid_coarsening = false)	0.116 ± 0.0082 s	0.114 ± 0.0088 s	1.02 ± 0.11
Simple Pendulum/OOP/MultipleShooting(100, Tsit5; grid_coarsening = true)	0.142 ± 0.027 s	0.14 ± 0.024 s	1.01 ± 0.26
Simple Pendulum/OOP/Shooting(Tsit5())	0.643 ± 0.046 ms	0.653 ± 0.053 ms	0.985 ± 0.11
time_to_load	5.04 ± 0.045 s	5.02 ± 0.0091 s	1 ± 0.0091

Benchmark Plots

A plot of the benchmark results have been uploaded as an artifact to the workflow run for this PR.
Go to "Actions"->"Benchmark a pull request"->[the most recent run]->"Artifacts" (at the bottom).