v5.49.0

DelayDiffEq v5.49.0

Diff since v5.48.1

Merged pull requests:

• Fix tests not not assume Rosenbrock23 doesn't W transform (#294) (@oscardssmith)
• ci: test with 1, lts and pre versions of julia (#295) (@thazhemadam)
• CompatHelper: bump compat for SimpleNonlinearSolve to 2, (keep existing compat) (#296) (@github-actions[bot])
• Test master (#297) (@ChrisRackauckas)
• prepare to remove OrdinaryDiffEq dependency (#299) (@oscardssmith)
• feat: add support for symbolic save_idxs (#300) (@AayushSabharwal)