CompatHelper: bump compat for SciMLBase to 2, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the SciMLBase package from 1 to 1, 2.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.57% ⚠️

Comparison is base (5fa60ed) 59.85% compared to head (8b29339) 59.29%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #236      +/-   ##
==========================================
- Coverage   59.85%   59.29%   -0.57%     
==========================================
  Files          16       16              
  Lines         989      990       +1     
==========================================
- Hits          592      587       -5     
- Misses        397      403       +6     

see 3 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.