CompatHelper: bump compat for OrdinaryDiffEqDefault to 2 for package docs, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the OrdinaryDiffEqDefault package from 1 to 1, 2 for package docs.
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.

[github-actions]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.30%. Comparing base (8c12c04) to head (60c2d7c).

❗ There is a different number of reports uploaded between BASE (8c12c04) and HEAD (60c2d7c). Click for more details.

HEAD has 6 uploads less than BASE

Flag	BASE (8c12c04)	HEAD (60c2d7c)
	2	0
docs	5	1

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #216       +/-   ##
===========================================
- Coverage   87.96%   71.30%   -16.66%     
===========================================
  Files          20       19        -1     
  Lines        1462     1443       -19     
===========================================
- Hits         1286     1029      -257     
- Misses        176      414      +238     

Flag	Coverage Δ
docs	71.30% <ø> (ø)

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