SONAR-8151 make property sonar.organizations.anyoneCanCreate hidden

sonar-core/src/main/java/org/sonar/core/config/CorePropertyDefinitions.java

@@ -253,6 +253,7 @@ public class CorePropertyDefinitions {
         .defaultValue(Boolean.toString(false))
         .category(CATEGORY_ORGANIZATIONS)
         .type(PropertyType.BOOLEAN)
+        .hidden()
         .build(),
       PropertyDefinition.builder(ORGANIZATIONS_CREATE_PERSONAL_ORG)
         .name("Create an organization for each new user")