Disable PeerTrafficWatcher and CoturnMetricsService

[alexlapa]

Synopsis

Эти компоненты необходимы для реализации on_start / on_stop коллбеков (#91). Так как та задача переносится на следующий milestone, а эти компоненты в данный момент доставляют определенный дискомфорт и в любом случае будут дорабатываться, было решено их временно выключить.

Solution

Disable PeerTrafficWatcher and CoturnMetricsService.

Checklist

• Created PR:
  • [x] In draft mode
  • [x] Name contains Draft: prefix
  • [x] Name contains issue reference
  • [x] Has k:: labels applied
  • [x] Has assignee
• [x] Documentation is updated (if required)
• [x] Tests are updated (if required)
• [x] Changes conform code style
• [x] CHANGELOG entry is added (if required)
• [x] FCM (final commit message) is posted
  • [x] and approved
• [x] Review is completed and changes are approved
• Before merge:
  • [x] Milestone is set
  • [x] PR's name and description are correct and up-to-date
  • [x] Draft: prefix is removed
  • [x] All temporary labels are removed

[alexlapa]

FCM:

Disable PeerTrafficWatcher and CoturnMetricsService (#166)

Additionally:
- upgrade Firefox to 84.0 version for E2E tests
- upgrade 'rand' crate to 0.8 version