Enable `assumeImmutableResults` in security_configuration index

This commit solves https://gitlab.com/gitlab-org/gitlab/-/issues/331276
It enables `assumeImmutableResults` in the security_configuration index

app/assets/javascripts/security_configuration/index.js

@@ -14,7 +14,7 @@ export const initSecurityConfiguration = (el) => {
   Vue.use(VueApollo);
 
   const apolloProvider = new VueApollo({
-    defaultClient: createDefaultClient(),
+    defaultClient: createDefaultClient({}, { assumeImmutableResults: true }),
   });
 
   const {