Add support for Upgrade: Derp custom protocol

[abhinavsingh]

• Ref https://coder.com/docs/networking#relayed-connections
• @coder

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.71%. Comparing base (447b68e) to head (73d5068).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1463   +/-   ##
========================================
  Coverage    84.71%   84.71%           
========================================
  Files          182      182           
  Lines         8331     8331           
  Branches      1270     1270           
========================================
  Hits          7058     7058           
  Misses        1068     1068           
  Partials       205      205           

Flag	Coverage Δ
GHA	84.56% <100.00%> (ø)
Linux	84.20% <100.00%> (ø)
Python 3.10	85.27% <100.00%> (ø)
Python 3.11	84.45% <100.00%> (ø)
Python 3.12	84.45% <100.00%> (ø)
Python 3.6	85.23% <100.00%> (ø)
Python 3.7	85.23% <100.00%> (ø)
Python 3.8	85.26% <100.00%> (ø)
Python 3.9	85.33% <100.00%> (ø)
Windows	77.94% <100.00%> (-0.03%)	⬇️
macOS	84.56% <100.00%> (ø)
pytest	84.56% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

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