Detailed test report for github actions

[amitgalitz]

Is your feature request related to a problem? Please describe.
After adding gradle-retry to our CI workflow it can lead to some flaky tests never being addressed. Flaky tests will still be displayed in our github action logs even if they pass on retry, however, going through such logs can be pretty messy and time consuming.

Describe the solution you'd like
I propose implementing a similar workflow as seen in this PR in opensearch-core where a nicely formatted CI report is produced at the end of the workflow to easily view if any flaky tests occur