[Various Issues] SAML Integration Tests

[RyanL1997]

Description

This issue is targeting on tracking recent fixes/enhancement for SAML integration test in following aspects:

• Missing Firefox driver setup for the latest update of Selenium [1].
• Failing reusable action of integration test workflow [2].
• Unstable of tenants switching in SAML integration test case [3].

Please use this issue to track the following tasks for SAML integration test enhancement:

• Add firefox driver into the workflow to adapt the latest update of Selenium
  Add Firefox driver to the integration test workflow #1229
• Fix reusable action file to run SAML integration test
  Modify reusable action to support workflow call acrossing repositories security#2290
  Reuse of Opensearch core and Opensearch Dashboard setup for CI workflow #1212
• Enhance the stability of SAML integration test
  Improve the stability of SAML integ test #1237

Reference

1: actions/runner-images#6399
2: #1212
3: #1193