Fixed bug with timeout (BugFix)

[fernando79513]

Description

There was a weir issue with the timeout decorator in which if the main program launched a subprocess and it was exited with a keyboard exception, it was not propagated and the subprocess continued to run despite the program being closed. This was detected with the USB tests:

$ fernando@IdeaPad-Pro-5 ~/checkbox (fix-journal-issue-xenial) $
python checkbox-support/checkbox_support/scripts/run_watcher.py insertion usb3

--------- Testing insertion ---------
PID: 3263961

INSERT NOW

Timeout: 30 seconds
...
KeyboardInterrupt
...

$ fernando@IdeaPad-Pro-5 ~/checkbox (fix-journal-issue-xenial) $
ps -p 3263961
    PID TTY          TIME CMD
3263961 ?        00:00:00 journalctl
$ fernando@IdeaPad-Pro-5 ~/checkbox (fix-journal-issue-xenial) $
INFO:super_speed_usb was inserted. Controller: xhci_hcd, Number: 62
INFO:usable partition: sdd
INFO:USB3 insertion test passed.

------- Insertion test passed -------

Resolved issues

Documentation

Tests

Tested on the same device that was experiencing the USB issue

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 50.01%. Comparing base (7259fc9) to head (dd99146).
Report is 106 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1840   +/-   ##
=======================================
  Coverage   50.00%   50.01%           
=======================================
  Files         378      378           
  Lines       40775    40779    +4     
  Branches     6847     6847           
=======================================
+ Hits        20390    20394    +4     
  Misses      19658    19658           
  Partials      727      727           

Flag	Coverage Δ
checkbox-support	62.20% <100.00%> (+0.02%)	⬆️

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[Hook25]

impressive fix, well done, +1