feat: Add disable_badge_count field to set pusher request

[jmartinesp]

This allows the clients to stop receiving push notifications for unread counts in their devices, when it's not useful.

Needs ruma/ruma#2214.

Implements #4951

• Public API changes documented in changelogs (optional)

Signed-off-by:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.34%. Comparing base (878e02b) to head (8da228c).
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5658   +/-   ##
=======================================
  Coverage   88.34%   88.34%           
=======================================
  Files         354      354           
  Lines       97097    97099    +2     
  Branches    97097    97099    +2     
=======================================
+ Hits        85778    85785    +7     
+ Misses       7266     7261    -5     
  Partials     4053     4053           

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

[codspeed-hq]

CodSpeed Performance Report

Merging #5658 will not alter performance

_{Comparing feat/add-disable-badge-count-feature-to-set-pusher-request (6060738) with main (90eb403)}

Summary

✅ 49 untouched