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

[github-actions[bot]]

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[bot]]

Codecov Report

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

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

Additional details and impacted files

```diff @@ 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](https://app.codecov.io/gh/YichengDWu/Sophon.jl/pull/236/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Yicheng+Wu)

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