Merge pull request #1150 from SciML/compathelper/new_version/2025-09-18-00-24-15-278-00972351367

CompatHelper: bump compat for Sundials to 5 for package downstream, (keep existing compat)

Author: ChrisRackauckas

test/downstream/Project.toml

@@ -53,7 +53,7 @@ StableRNGs = "1"
 SteadyStateDiffEq = "2.2"
 StochasticDelayDiffEq = "1"
 StochasticDiffEq = "6"
-Sundials = "4.11"
+Sundials = "4.11, 5"
 SymbolicIndexingInterface = "0.3"
 SymbolicUtils = "<1.6, 2, 3"
 Tables = "1"