[Security Solution][Onboarding] Fix broken "add integrations" links

[semd]

Describe the bug:

From: #183760

On the Security Onboarding page, users who are not able to access the integrations page are still prompted to add integrations.

Screen.Recording.2024-05-17.at.17.52.16.mov

Kibana/Elasticsearch Stack version:

8.14

Functional Area (e.g. Endpoint management, timelines, resolver, etc.):

Onboarding page.

Steps to reproduce:

1. Log in to Security with a viewer role
2. Go to the onboarding page

Current behavior:
The "Add data with Integrations" step with the buttons still appears but once clicked the page shows an error since it's inaccessible.

Expected behavior:
The "Add data with Integrations" step should not appear for users that can not add integrations.

Any additional context (logs, chat logs, magical formulas, etc.):
It will be good to re-check what predefined roles should be able to add integrations in serverless, I have only been able to access the integrations page using platform_engineer role.

[elasticmachine]

Pinging @elastic/security-solution (Team: SecuritySolution)

[elasticmachine]

Pinging @elastic/security-threat-hunting (Team:Threat Hunting)

[elasticmachine]

Pinging @elastic/security-threat-hunting-explore (Team:Threat Hunting:Explore)