Update Observability event analytics visualization test

[ps48]

Description

Fixes flaky test for saved visualization in event analytics

Issues Resolved

[List any issues this PR will resolve]

Check List

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[ps48]

  (Run Starting)

  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
  │ Cypress:        9.5.4                                                                          │
  │ Browser:        Electron 94 (headless)                                                         │
  │ Node Version:   v18.16.0 (/Users/sgguruda/.nvm/versions/node/v18.16.0/bin/node)                │
  │ Specs:          1 found (plugins/observability-dashboards/5_event_analytics.spec.js)           │
  │ Searched:       cypress/integration/plugins/observability-dashboards/5_event_analytics.spec.js │
  └────────────────────────────────────────────────────────────────────────────────────────────────┘


────────────────────────────────────────────────────────────────────────────────────────────────────

  Running:  plugins/observability-dashboards/5_event_analytics.spec.js                      (1 of 1)
Browserslist: caniuse-lite is outdated. Please run:
npx browserslist@latest --update-db

Why you should do it regularly:
https://github.com/browserslist/browserslist#browsers-data-updating


  Click actions
    ✓ Actions - add sample data (15100ms)

  Saves a query on explorer page
    ✓ Saves a query on event tab of explorer page (23623ms)
    ✓ Saves a visualization on visualization tab of explorer page (30024ms)

  Delete saved objects
    ✓ Delete visualizations/queries from event analytics (17765ms)


  4 passing (1m)


  (Results)

  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
  │ Tests:        4                                                                                │
  │ Passing:      4                                                                                │
  │ Failing:      0                                                                                │
  │ Pending:      0                                                                                │
  │ Skipped:      0                                                                                │
  │ Screenshots:  0                                                                                │
  │ Video:        true                                                                             │
  │ Duration:     1 minute, 26 seconds                                                             │
  │ Spec Ran:     plugins/observability-dashboards/5_event_analytics.spec.js                       │
  └────────────────────────────────────────────────────────────────────────────────────────────────┘


  (Video)

  -  Started processing:  Compressing to 32 CRF
  -  Finished processing: /Users/sgguruda/work/git_codebase/temp/opensearch-dashboard   (12 seconds)
                          s-functional-test/cypress/videos/plugins/observability-dash
                          boards/5_event_analytics.spec.js.mp4

    Compression progress:  100%

====================================================================================================

  (Run Finished)


       Spec                                              Tests  Passing  Failing  Pending  Skipped
  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
  │ ✔  plugins/observability-dashboards/5_      01:26        4        4        -        -        - │
  │    event_analytics.spec.js                                                                     │
  └────────────────────────────────────────────────────────────────────────────────────────────────┘
    ✔  All specs passed!                        01:26        4        4        -        -        -

✨  Done in 114.17s.

[ps48]

@kavilla can you please review this PR and backport for main and 2.x