add rustls

[jeizsm]

No description provided.

[codecov]

Codecov Report

Merging #427 into master will decrease coverage by 0.34%.
The diff coverage is 2.35%.

@@            Coverage Diff             @@
##           master     #427      +/-   ##
==========================================
- Coverage   74.22%   73.87%   -0.35%     
==========================================
  Files         102      102              
  Lines       16242    16318      +76     
==========================================
  Hits        12055    12055              
- Misses       4187     4263      +76

Impacted Files	Coverage Δ
tests/test_ws.rs	85.71% <ø> (ø)	⬆️
src/server/mod.rs	35.61% <0%> (-8.46%)	⬇️
src/server/worker.rs	37.39% <0%> (-8.85%)	⬇️
src/server/srv.rs	46.02% <0%> (-1.91%)	⬇️
src/client/connector.rs	39.11% <5.88%> (-1.49%)	⬇️
src/test.rs	71.53% <6.66%> (-2.21%)	⬇️

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[fafhrd91]

great! thanks!