scripts/coverity-scan/COMPONENTS.md: Fix monitor component

Update the 'monitor' component:
 * qapi/ and monitor/ are now subdirectories
 * add job-qmp.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240604145934.1230583-5-peter.maydell@linaro.org
1 file changed