Call: RTC decline event support

[BillCarsonFr]

Fixes #5307
Fixes #5308

Depends on rust-sdk matrix-org/matrix-rust-sdk#5614

Adds support for declining calls:

• When receiving an incoming call, the red decline button will now send a x.msc4310.rtc.decline event in the room.
• When EX starts ringing it will also start listening for incoming .rtc.decline in order to stop ringing if the call was declined from another session

Content

Motivation and context

Screenshots / GIFs

Tests

• Step 1
• Step 2
• Step ...

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes have been tested on an Android device or Android emulator with API 24
• 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
• You've made a self review of your PR

[github-actions]

📱 Scan the QR code below to install the build (arm64 only) for this PR.

If you can't scan the QR code you can install the build via this link: https://i.diawi.com/TpMbho

[codecov]

Codecov Report

❌ Patch coverage is 67.30769% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.63%. Comparing base (87c8c57) to head (5bbe299).
⚠️ Report is 34 commits behind head on develop.

Files with missing lines	Patch %	Lines
...android/libraries/matrix/impl/room/RustBaseRoom.kt	0.00%	8 Missing ⚠️
...roid/features/call/impl/utils/ActiveCallManager.kt	80.55%	2 Missing and 5 partials ⚠️
...droid/libraries/matrix/impl/room/join/AllowRule.kt	0.00%	1 Missing ⚠️
...android/libraries/matrix/test/room/FakeBaseRoom.kt	80.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5305      +/-   ##
===========================================
- Coverage    79.64%   79.63%   -0.01%     
===========================================
  Files         2259     2259              
  Lines        62499    62546      +47     
  Branches      7833     7843      +10     
===========================================
+ Hits         49779    49811      +32     
- Misses        9854     9865      +11     
- Partials      2866     2870       +4     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[bmarty]

Thanks. I have pushed a few commits, let me know if it's OK for you @BillCarsonFr

[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 SonarQube Cloud

[BillCarsonFr]

Thanks. I have pushed a few commits, let me know if it's OK for you @BillCarsonFr

All good, thx for the clean up !