Upgrade to Spring Framework 6.2.18

Closes gh-49967

Author: snicoll

gradle.properties

@@ -19,7 +19,7 @@ mavenVersion=3.9.13
 mockitoVersion=5.17.0
 nativeBuildToolsVersion=0.10.6
 snakeYamlVersion=2.4
-springFrameworkVersion=6.2.18-SNAPSHOT
+springFrameworkVersion=6.2.18
 springFramework60xVersion=6.0.23
 tomcatVersion=10.1.54