Add compatibility with more recent versions of mtk

[ctessum]

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.

[isaacsas]

These aren't breaking releases, so why does this require updating the Project.toml MTK versions?

[isaacsas]

Note that we can't release a version with Symbolics 6 support till our CI is passing again. Hopefully the MTK unit PR I just submitted fixes things, but we need a new MTK release to test against.

[isaacsas]

I'm going to close this. Once the new MTK release is available I will get #961 merged (assuming tests pass), and then make a new release. That should add support for newer MTK versions.

Thanks for the PR in either case though!

[isaacsas]

Catalyst 14.4 should be released shortly and compatible with recent MTK versions.

[ctessum]

Got it, thanks!