[Test] Ensure the OSD server starts before cypress test running

[bowenlan-amzn]

We had a flaky test — aliases.js which is the first cypress test because the OSD server hasn't started before. #920 (comment)

@kohinoor98 comes up with a solution to wait for the first API call from test to complete
While on the other hand we can try ensure the OSD server starts before running cypress tests, and here are 2 existing ways worth to take a look.

https://github.com/opensearch-project/OpenSearch-Dashboards/blob/f6ce6e707035f791ed98a9edeab785d0785a8dbd/.github/workflows/cypress_workflow.yml#L149

index-management-dashboards-plugin/.github/workflows/cypress-workflow.yml

Line 75 in 1c8f0c6

# timeout 300 bash -c 'while [[ "$(curl -s localhost:5601/api/status | jq -r '.status.overall.state')" != "green" ]]; do sleep 5; done'

[kohinoor98]

Hi @bowenlan-amzn

Please could I take this up?