fix(sa): increase detectorsSearch wait timeout

[yashgupte21]

Description

Increase detectorsSearch wait timeout from 300s to 500s in the SA detector tests. The 300s timeout is insufficient when running against domains with higher network latency, causing flaky failures in the beforeEach hooks.

Issues Resolved

Resolves flaky cy.wait('@detectorsSearch') timeout in 1_detectors.spec.js

(Run Finished)


       Spec                                              Tests  Passing  Failing  Pending  Skipped  
  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
  │ ✔  plugins/security-analytics-dashboar      06:03       14       12        -        2        - │
  │    ds-plugin/1_detectors.spec.js                                                               │
  └────────────────────────────────────────────────────────────────────────────────────────────────┘
    ✔  All specs passed!                        06:03       14       12        -        2        -  

✨  Done in 394.84s.

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