[Cloud Security] skip flaky CNVM test (#190718)

## Summary

Skipping flaky test

Part of:
- #186302

x-pack/test/cloud_security_posture_functional/pages/cis_integrations/cnvm/cis_integration_cnvm.ts

@@ -49,7 +49,7 @@ export default function (providerContext: FtrProviderContext) {
         ).to.be(true);
       });
 
-      it('Clicking on Launch CloudFormation on post intall modal should lead user to Cloud Formation page', async () => {
+      it.skip('Clicking on Launch CloudFormation on post intall modal should lead user to Cloud Formation page', async () => {
         await cisIntegration.navigateToAddIntegrationCnvmPage();
         await cisIntegration.inputUniqueIntegrationName();
         await pageObjects.header.waitUntilLoadingHasFinished();