[8.x] Skip 'No connectors or conversations exist' on serverless (#2…

…13078) (#213110)

# Backport

This will backport the following commits from `main` to `8.x`:
- [Skip `'No connectors or conversations exist'` on serverless
(#213078)](#213078)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Patryk
Kopyciński","email":"contact@patrykkopycinski.com"},"sourceCommit":{"committedDate":"2025-03-04T14:28:12Z","message":"Skip
`'No connectors or conversations exist'` on serverless (#213078)\n\n##
Summary\n\nFixes\nhttps://buildkite.com/elastic/kibana-serverless-security-solution-quality-gate-gen-ai/builds/2139#_\n\n\n![image](https://github.com/user-attachments/assets/0e2db8db-28d8-4097-968c-52a42b2e9b07)","sha":"f74b6b52dc7f84878488348512f0a26366d9c3c7","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","backport:version","v9.1.0","v8.19.0"],"title":"Skip
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`'No connectors or conversations exist'` on serverless (#213078)\n\n##
Summary\n\nFixes\nhttps://buildkite.com/elastic/kibana-serverless-security-solution-quality-gate-gen-ai/builds/2139#_\n\n\n![image](https://github.com/user-attachments/assets/0e2db8db-28d8-4097-968c-52a42b2e9b07)","sha":"f74b6b52dc7f84878488348512f0a26366d9c3c7"}},"sourceBranch":"main","suggestedTargetBranches":["8.x"],"targetPullRequestStates":[{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/213078","number":213078,"mergeCommit":{"message":"Skip
`'No connectors or conversations exist'` on serverless (#213078)\n\n##
Summary\n\nFixes\nhttps://buildkite.com/elastic/kibana-serverless-security-solution-quality-gate-gen-ai/builds/2139#_\n\n\n![image](https://github.com/user-attachments/assets/0e2db8db-28d8-4097-968c-52a42b2e9b07)","sha":"f74b6b52dc7f84878488348512f0a26366d9c3c7"}},{"branch":"8.x","label":"v8.19.0","branchLabelMappingKey":"^v8.19.0$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: Patryk Kopyciński <contact@patrykkopycinski.com>

x-pack/test/security_solution_cypress/cypress/e2e/ai_assistant/conversations.cy.ts

@@ -67,7 +67,8 @@ describe('AI Assistant Conversations', { tags: ['@ess', '@serverless'] }, () =>
     waitForConversation(mockConvo1);
     waitForConversation(mockConvo2);
   });
-  describe('No connectors or conversations exist', () => {
+  // On serverless we provide deafult .inference `Elastic LLM` connector
+  describe('No connectors or conversations exist', { tags: ['@skipInServerless'] }, () => {
     it('Shows welcome setup when no connectors or conversations exist', () => {
       visitGetStartedPage();
       openAssistant();