Increase timeout and wait to maps-dashboards tests

[junqiu-lei]

Description

Increase the timeout and wait period for maps-dashboards tests to prevent intermittent failures, especially in Jenkins CI with security enabled.

Test

Tested in docker image opensearchstaging/ci-runner:ci-runner-rockylinux8-opensearch-dashboards-integtest-v4 which is same used in Jenkins Integ Test Pipeline.

       Spec                                              Tests  Passing  Failing  Pending  Skipped  
  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
  │ ✔  plugins/custom-import-map-dashboard      00:24        1        1        -        -        - │
  │    s/1_import_vector_map_tab.spec.js                                                           │
  ├────────────────────────────────────────────────────────────────────────────────────────────────┤
  │ ✔  plugins/custom-import-map-dashboard      01:35        1        1        -        -        - │
  │    s/2_opensearchMapLayer.spec.js                                                              │
  ├────────────────────────────────────────────────────────────────────────────────────────────────┤
  │ ✔  plugins/custom-import-map-dashboard      01:13        1        1        -        -        - │
  │    s/3_add_saved_object.spec.js                                                                │
  ├────────────────────────────────────────────────────────────────────────────────────────────────┤
  │ ✔  plugins/custom-import-map-dashboard      01:51        2        2        -        -        - │
  │    s/4_documentsLayer.spec.js                                                                  │
  └────────────────────────────────────────────────────────────────────────────────────────────────┘
    ✔  All specs passed!                        05:04        5        5        -        -        -  

Issue

opensearch-project/dashboards-maps#578
#883

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