check the status of socket before shutting down

[deounix]

This error happen when I'm trying to shutdown the server from the command line with CTRL+C

Platform: Windows 11

OSError: [WinError 10057] A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied

Closes #2684

[codecov]

Codecov Report

Base: 88.583% // Head: 88.661% // Increases project coverage by +0.077% 🎉

Coverage data is based on head (32d7090) compared to base (5e7f699).
Patch coverage: 50.000% of modified lines in pull request are covered.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #2680       +/-   ##
=============================================
+ Coverage   88.583%   88.661%   +0.077%     
=============================================
  Files           87        87               
  Lines         6850      6853        +3     
  Branches      1171      1171               
=============================================
+ Hits          6068      6076        +8     
+ Misses         539       537        -2     
+ Partials       243       240        -3     

Impacted Files	Coverage Δ
sanic/mixins/startup.py	90.807% <50.000%> (-0.390%)	⬇️
sanic/server/websockets/impl.py	38.479% <0.000%> (+0.691%)	⬆️
sanic/app.py	90.053% <0.000%> (+0.710%)	⬆️

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[ahopkins]

I'd like to 🎉

First PR added to the merge queue. Very happy to have this feature finally.