community/gnome-system-monitor: upgrade to 45.0

Changelog:

New in 45.0 - 16 August 2023

* Updated translations
* Fixed dconf error handling #258 #254 #259 (Lanchon)
* Avoid network spike when monitored interfaces change (Lanchon)

New in 45.beta - 03 August 2023

* Updated translations
* Settings write should be async and delayed #254 (Robert Roth)
* Use Terminate instead of End process #237 (Robert Roth)
* Make affinity strings translatable #209 (Robert Roth)
* Fixed gschema descriptions to match column names #169 (Robert Roth)

New in 45.alpha - 28 June 2023

* Updated translations
* Add placeholder text to the search entry #244 !68 (Automeris naranja)
* Remove unused ctime_r check !67 (Florian Weimer)
* Don't move main window to left/top screen on start on multi-screen #246 !66 (Igor Kushnir)
* Use action-name properties !64 (Sabri Ünal)