feat(playwright): emit errors

[InesNi]

Description

Emitting errors from the Playwright engine. This means that errors will show up in reports, and (for recorded tests) on Artillery Cloud dashboard as well.

For simplicity errors are divided in 2 groups:

• Assertion errors caused by expect will be recorded as pw_failed_assertion.{expectation}
• Any other errors will be recorded as {error.message}

The error messages have been cleaned by removing any ANSI codes as well as any additional lines - just the first line is used

Testing:
Tested manually by causing multiple different failed assertions and errors types.

Note:

• Error handling logic of the Playwright engine in general should be reexamined and addressed in a separate PR in necessary.

Pre-merge checklist

• Does this require an update to the docs?
• Does this require a changelog entry?