Don't crash when failing to connect to the database

[yhabteab]

Before

root@debian12-yh:~# systemctl status icinga-reporting.service
× icinga-reporting.service - Icinga Reporting Scheduler
     Loaded: loaded (/lib/systemd/system/icinga-reporting.service; enabled; preset: enabled)
     Active: failed (Result: exit-code) since Tue 2023-10-24 08:57:38 UTC; 2min 21s ago
   Duration: 76ms
    Process: 231208 ExecStart=/usr/bin/icingacli reporting schedule run (code=exited, status=255/EXCEPTION)
   Main PID: 231208 (code=exited, status=255/EXCEPTION)
        CPU: 72ms

Oct 24 08:57:38 debian12-yh icingacli[231208]: #1 /usr/share/icingaweb2/modules/reporting/application/clicommands/ScheduleCommand.php(89): Icinga\Module\Reporting\Cli\Command->getDb()
Oct 24 08:57:38 debian12-yh icingacli[231208]: #2 /usr/share/icingaweb2/modules/reporting/application/clicommands/ScheduleCommand.php(40): Icinga\Module\Reporting\Clicommands\ScheduleCommand->fetchSchedu>
Oct 24 08:57:38 debian12-yh icingacli[231208]: #3 /usr/share/icinga-php/ipl/vendor/react/event-loop/src/Tick/FutureTickQueue.php(46): Icinga\Module\Reporting\Clicommands\ScheduleCommand->Icinga\Module\Re>
Oct 24 08:57:38 debian12-yh icingacli[231208]: #4 /usr/share/icinga-php/ipl/vendor/react/event-loop/src/StreamSelectLoop.php(183): React\EventLoop\Tick\FutureTickQueue->tick()
Oct 24 08:57:38 debian12-yh icingacli[231208]: #5 /usr/share/icinga-php/ipl/vendor/react/event-loop/src/Loop.php(55): React\EventLoop\StreamSelectLoop->run()
Oct 24 08:57:38 debian12-yh icingacli[231208]: #6 [internal function]: React\EventLoop\Loop::React\EventLoop\{closure}()
Oct 24 08:57:38 debian12-yh icingacli[231208]: #7 {main}
Oct 24 08:57:38 debian12-yh icingacli[231208]:   thrown in /usr/share/php/Icinga/Data/ResourceFactory.php on line 49
Oct 24 08:57:38 debian12-yh systemd[1]: icinga-reporting.service: Main process exited, code=exited, status=255/EXCEPTION
Oct 24 08:57:38 debian12-yh systemd[1]: icinga-reporting.service: Failed with result 'exit-code'.

After

root@2819b1155e37:/var/www/html# icingacli reporting schedule run --debug
Failed to fetch report schedules from the database: Icinga\Exception\ConfigurationError in /icingaweb2/library/Icinga/Data/ResourceFactory.php:49 with message: Cannot load resource config "reporting". Resource does not exist

[nilmerg]

Please make sure the updated configuration is actually read by the daemon. The Database trait uses Config::module and this caches configs by default.