Reevaluate timeouts used by burn_in_test

In burn_in_tests, we will dynamically set timeouts based on the expected runtime of the test being run. There have, however, been some issues with the timeouts being used. We should investigate if we can improve the timeout calculations.

As a Server engineer,
I don't want my burn_in_tests runs to timeout if there are not issues,
So that I do not have to spend time investigating non-issues.

AC:

• burn_in_timeouts are adjusted to generate less false-timeouts.