Fix crash when getting the system ringtone for ringing calls

[jmartinesp]

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

Wrap the call to get the system ringtone in a runCatching so we can recover if it fails. The app will use the default notification sound in that case, we should add a fallback one in the future.

Motivation and context

Fixes #3121.

Tests

This seems to depend on your OS/vendor version, so there's no easy way to test it.

Checklist

• Changes have been tested on an Android device or Android emulator with API 23
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request title will be used in the release note, it clearly define what will change for the user
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

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[bmarty]

Thanks for fixing this

[codecov]

Codecov Report

Attention: Patch coverage is 14.28571% with 12 lines in your changes missing coverage. Please review.

Project coverage is 75.97%. Comparing base (37eaa5e) to head (8db86e1).
Report is 9 commits behind head on develop.

Files	Patch %	Lines
...mpl/notifications/channels/NotificationChannels.kt	10.00%	7 Missing and 2 partials ⚠️
...pl/notifications/RingingCallNotificationCreator.kt	25.00%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3131      +/-   ##
===========================================
- Coverage    76.00%   75.97%   -0.03%     
===========================================
  Files         1636     1636              
  Lines        38591    38595       +4     
  Branches      7458     7462       +4     
===========================================
- Hits         29330    29322       -8     
- Misses        5373     5381       +8     
- Partials      3888     3892       +4     

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