Overhaul stats events: merge UDP core events with a different IP version

[josecelano]

Change events from this:

bittorrent_udp_tracker_core::statistics::event::Event:

pub enum Event {
    Udp4Connect,
    Udp4Announce,
    Udp4Scrape,
    Udp6Connect,
    Udp6Announce,
    Udp6Scrape,
}

To this:

pub enum Event {
    UdpConnect { context: ConnectionContext },
    UdpAnnounce { context: ConnectionContext },
    UdpScrape { context: ConnectionContext },
}

pub struct ConnectionContext {
    client_socket_addr: SocketAddr,
    server_socket_addr: SocketAddr,
}

This have also be done for HTTP core events.

Sub-tasks

• Add ConnectionContext to events.
• Merge events with the same request type (connect, announce and scrape).

[codecov]

Codecov Report

Attention: Patch coverage is 97.54386% with 7 lines in your changes missing coverage. Please review.

Project coverage is 81.91%. Comparing base (0428972) to head (8603f8b).
Report is 3 commits behind head on develop.

Files with missing lines	Patch %	Lines
...kages/udp-tracker-core/src/statistics/event/mod.rs	50.00%	6 Missing ⚠️
packages/udp-tracker-core/src/services/scrape.rs	90.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1381      +/-   ##
===========================================
+ Coverage    81.76%   81.91%   +0.15%     
===========================================
  Files          230      231       +1     
  Lines        16806    16974     +168     
  Branches     16806    16974     +168     
===========================================
+ Hits         13742    13905     +163     
- Misses        2821     2826       +5     
  Partials       243      243              

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[josecelano]

ACK 8603f8b