Raise JumpProcesses downgrade floor (#4773)

Co-authored-by: ChrisRackauckas-Claude <accounts@chrisrackauckas.com>

Author: ChrisRackauckas-Claude

Project.toml

@@ -130,7 +130,7 @@ ControlSystemsBase = "1"
 DiffEqCallbacks = "4, 5, 6"
 Distributed = "1"
 DynamicQuantities = "1"
-JumpProcesses = "9"
+JumpProcesses = "9.28"
 Latexify = "0.16"
 Random = "1"
 RecursiveArrayTools = "3, 4"