[CT-2799] [CT-2793] Build Test Repeater for Flaky tests

[emmyoop]

Build a simple workflow to be used across core and adapters. It would take in the branch, test name or test file name, and number of times to repeat the test (with a default) - other inputs may be required.

Its purpose would be to ensure that a test is flaky and/or test if a fix for a flaky test was successful.

cloud's version