22.3 Deprecations and changes

[ahopkins]

1. debug=True and --debug do NOT automatically run auto_reload
2. Default error render is with plain text (browsers still get HTML by default because auto looks at headers)
3. config is required for ErrorHandler.finalize
4. ErrorHandler.lookup requires two positional args
5. Unused websocket protocol args removed

There is one more change that will need to happen in sanic-routing. That will take place in its own PR.

[codecov]

Codecov Report

Merging #2362 (aa3c3ca) into main (8b0eaa0) will increase coverage by 0.178%.
The diff coverage is 37.500%.

@@              Coverage Diff              @@
##              main     #2362       +/-   ##
=============================================
+ Coverage   86.070%   86.248%   +0.178%     
=============================================
  Files           60        60               
  Lines         5018      5003       -15     
  Branches       900       896        -4     
=============================================
- Hits          4319      4315        -4     
+ Misses         509       502        -7     
+ Partials       190       186        -4     

Impacted Files	Coverage Δ
sanic/app.py	86.636% <0.000%> (-0.131%)	⬇️
sanic/handlers.py	95.384% <66.666%> (+4.670%)	⬆️
sanic/server/protocols/websocket_protocol.py	68.181% <100.000%> (+5.681%)	⬆️
sanic/server/protocols/http_protocol.py	83.720% <0.000%> (-3.489%)	⬇️
sanic/errorpages.py	97.938% <0.000%> (+1.030%)	⬆️

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