Update spring core to v6

renovate[bot] · web-flow · commit fa2bdd9d60bb · 2023-11-23T19:41:21.000Z
diff --git a/gradle.properties b/gradle.properties
@@ -27,7 +27,7 @@ seleniumVersion=3.14.0
 servletApiVersion=4.0.1
 spockVersion=2.1-groovy-3.0
 springBootVersion=2.7.17
-springVersion=5.3.30
+springVersion=6.1.1
 
 org.gradle.caching=true
 org.gradle.daemon=true
