Update to Spring Security 6.4.0-M2

Closes gh-1702

gradle.properties

@@ -3,7 +3,7 @@ org.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true
 org.gradle.caching=true
 springFrameworkVersion=6.2.0-M7
-springSecurityVersion=6.3.1
+springSecurityVersion=6.4.0-M2
 springJavaformatVersion=0.0.41
 checkstyleToolVersion=8.34
 nohttpCheckstyleVersion=0.0.11