[Security Solution] - skipping CSP Cypress test failing on MKI (elast…

…ic#195794)

## Summary

This PR is skipping a CSP test that is failing on MKI (see failing
[build](https://buildkite.com/elastic/kibana-serverless-security-solution-quality-gate-investigations/builds/1390#01927579-caed-41bc-9440-3cf29629a263))

The CSP tests are currently under the `expandable_flyout` folder own by
the @elastic/security-threat-hunting-investigations team. This is
temporary until the CSP has the time to create their own folder and all
the associated scripts for CI to run.

x-pack/test/security_solution_cypress/cypress/e2e/investigations/alerts/expandable_flyout/vulnerabilities_contextual_flyout.cy.ts

@@ -138,7 +138,8 @@ const deleteDataStream = () => {
   });
 };
 
-describe('Alert Host details expandable flyout', { tags: ['@ess', '@serverless'] }, () => {
+// skipping because failure on MKI environment (https://buildkite.com/elastic/kibana-serverless-security-solution-quality-gate-investigations/builds/1390#01927579-caed-41bc-9440-3cf29629a263)
+describe.skip('Alert Host details expandable flyout', { tags: ['@ess', '@serverless'] }, () => {
   beforeEach(() => {
     deleteAlertsAndRules();
     login();