fix: set ok=False when TestAbortAll is raised in run_suite_class

[devimano2011]

Related to #950 and #960

Problem

In run_suite_class() in suite_runner.py, when signals.TestAbortAll is raised, the except block only has pass and does not set ok = False. This means if a test aborts before any failures, the suite exits with code 0 instead of 1.

This is the same issue that was fixed in test_runner.py by PR #997 for issue #960, but run_suite_class() in suite_runner.py was missed.

Fix

Change pass to ok = False in the except signals.TestAbortAll block so that aborting a test suite always results in a non-zero exit code.

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