Require SciMLTesting 2.4 (#4807)

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

Author: ChrisRackauckas-Claude

Project.toml

@@ -138,7 +138,7 @@ ReferenceTests = "0.10"
 SafeTestsets = "0.1"
 SciCompDSL = "1"
 SciMLStructures = "1"
-SciMLTesting = "1, 2.1"
+SciMLTesting = "2.4"
 SpecialFunctions = "2"
 StableRNGs = "1"
 Statistics = "1"