QE-147 Include error message with failed (flaky?) tests

[Dan-DeAraujo]

Would help understand test failure reason trends, and we can focus de-flaking efforts on areas of higher impact.

EG: This run failed with Error: locator.fill: Target page, context or browser has been closed; which is clearly not something we can resolve directly, but if we notice an uptick post-Playwright update, we can complain to them about it

OTOH, if we notice alot of tests failing to find locators or whatever, maybe we need better training on how to pick good ones

Not sure if we can get it for flaky tests (ie: the first run of a retried set) too, but if we can that'd be even better

[devpow112]

Duplicate of #87.

[devpow112]

Gonna try and send error message, file, line and column values for each test when an error occurs. For retired tests I'm just gonna send the last error for now. If we find we need all error information or something else we can explore that separately.

[devpow112]

Moved to Jira