v4.23.2

Sundials v4.23.2

Diff since v4.23.1

Merged pull requests:

• Fix handling of small timesteps (#423) (@sjdaines)
• Bump actions/cache from 3 to 4 (#443) (@dependabot[bot])
• fix depwarns (#444) (@ChrisRackauckas)
• use vcat rather than append! to combine d_discontinuities and tstops (#445) (@oscardssmith)
• Memory-safety and allocations fixes for Handle{T} (#446) (@sjdaines)

Closed issues:

• v4.19.4 CVODE recoverable warnings now cause failures (#420)
• Allocations in convert(Ptr{T}, Handle{T}) (#435)
• Latest Sundials does not work on Julia v1.11+ (#441)
• Lots of warnings while running tests in 1.11-dev (#442)