fix: support GPUs again

[AayushSabharwal]

Checklist

• Appropriate tests were added
• Any code changes were done in a way that does not break public API
• All documentation related to code changes were updated
• The new code follows the
  contributor guidelines, in particular the SciML Style Guide and
  COLPRAC.
• Any new documentation only uses public API

Additional context

Add any other context about the problem here.

[github-actions]

Benchmark Results (Julia vlts)

Time benchmarks

	master	9b085d8...	master / 9b085d8...
ODEProblem	0.0903 ± 0.0062 s	0.097 ± 0.0063 s	0.931 ± 0.088
init	0.0585 ± 0.0021 ms	0.0584 ± 0.0017 ms	1 ± 0.046
large_parameter_init/ODEProblem	0.99 ± 0.0074 s	1.02 ± 0.0055 s	0.968 ± 0.0089
large_parameter_init/init	0.11 ± 0.0026 ms	0.109 ± 0.0028 ms	1.01 ± 0.035
mtkcompile	0.0342 ± 0.0013 s	0.0346 ± 0.00091 s	0.987 ± 0.046
time_to_load	5.3 ± 0.069 s	5.23 ± 0.049 s	1.01 ± 0.016

Memory benchmarks

	master	9b085d8...	master / 9b085d8...
ODEProblem	0.655 M allocs: 22 MB	0.655 M allocs: 22 MB	1
init	0.892 k allocs: 0.0461 MB	0.892 k allocs: 0.046 MB	1
large_parameter_init/ODEProblem	4.15 M allocs: 0.161 GB	4.15 M allocs: 0.161 GB	1
large_parameter_init/init	1.74 k allocs: 0.0857 MB	1.74 k allocs: 0.0856 MB	1
mtkcompile	0.225 M allocs: 8.35 MB	0.225 M allocs: 8.35 MB	1
time_to_load	0.153 k allocs: 14.5 kB	0.153 k allocs: 14.5 kB	1

[github-actions]

Benchmark Results (Julia v1)

Time benchmarks

	master	9b085d8...	master / 9b085d8...
ODEProblem	0.0967 ± 0.0058 s	0.0945 ± 0.0067 s	1.02 ± 0.095
init	0.0441 ± 0.011 ms	0.0438 ± 0.011 ms	1.01 ± 0.36
large_parameter_init/ODEProblem	1.15 ± 0.028 s	1.14 ± 0.03 s	1.01 ± 0.037
large_parameter_init/init	0.0768 ± 0.017 ms	0.0774 ± 0.018 ms	0.992 ± 0.32
mtkcompile	0.0341 ± 0.0013 s	0.0343 ± 0.003 s	0.995 ± 0.096
time_to_load	4.62 ± 0.014 s	4.62 ± 0.02 s	0.998 ± 0.0053

Memory benchmarks

	master	9b085d8...	master / 9b085d8...
ODEProblem	0.67 M allocs: 22 MB	0.668 M allocs: 22 MB	1
init	0.797 k allocs: 30.6 kB	0.797 k allocs: 30.5 kB	1
large_parameter_init/ODEProblem	4.39 M allocs: 0.162 GB	4.41 M allocs: 0.163 GB	0.992
large_parameter_init/init	1.64 k allocs: 0.0596 MB	1.64 k allocs: 0.0594 MB	1
mtkcompile	0.231 M allocs: 7.9 MB	0.231 M allocs: 7.89 MB	1
time_to_load	0.149 k allocs: 11.1 kB	0.149 k allocs: 11.1 kB	1

[ChrisRackauckas]

Add a test for isbitstype?

[AayushSabharwal]

Yeah I'm working on it. It's astonishing how many tests break if I change the SizedVector to an SVector