FPM: Add "pcntl" when running another test depending on pcntl

Add skip for FPM resource heavy tests

Fix bug #77023: FPM cannot shutdown processes

This change introduces subsequent kill of the process when idle process quit
(SIGQUIT) does not succeed. It can happen in some situations an

Fix bug #77023: FPM cannot shutdown processes

This change introduces subsequent kill of the process when idle process quit
(SIGQUIT) does not succeed. It can happen in some situations and means that FPM
is not able to scale down in dynamic pm. Using SIGKILL fixes the issue.

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