Update spring to 6.2.8 for CVE-2025-41234

Author: labkey-susanh

gradle.properties

@@ -292,7 +292,7 @@ snappyJavaVersion=1.1.10.7
 # Also, update apacheTomcatVersion above to match Spring Boot's Tomcat dependency version
 springBootVersion=3.4.5
 # This usually matches the Spring Framework version dictated by springBootVersion
-springVersion=6.2.7
+springVersion=6.2.8
 
 sqliteJdbcVersion=3.49.1.0