Bump sockjs from 0.3.19 to 0.3.21 in /client

[dependabot[bot]]

Bumps sockjs from 0.3.19 to 0.3.21.

Release notes

Sourced from sockjs's releases.

0.3.21

• Update faye-websocket and websocket-driver to address DDoS vulnerability #275

0.3.20

• Updated node-uuid and coffeescript
• Exclude examples, tests, and Makefile from npm package
• Update examples to use latest jQuery and sockjs-client #271
• Don't call res.end in writeHead #266
• Pin websocket-driver as later versions cause some tests from sockjs-protocol to fail

Changelog

Sourced from sockjs's changelog.

0.3.21

• Update faye-websocket and websocket-driver to address DDoS vulnerability #275

0.3.20

• Updated node-uuid and coffeescript
• Exclude examples, tests, and Makefile from npm package
• Update examples to use latest jQuery and sockjs-client #271
• Don't call res.end in writeHead #266
• Pin websocket-driver as later versions cause some tests from sockjs-protocol to fail

Commits

• a8fca8e 0.3.21
• 0efb3c9 Update faye-websocket and websocket-driver to fix security issue
• a0f6afb 0.3.20
• b989e9b Pin websocket-driver version to prevent test failures
• b4f1672 Add Makefile to .npmignore
• b97cd64 Update coffeescript to latest v1 and uuid to latest v3
• ac7bfeb Exclude examples and tests from npm
• 78a6aeb Update sockjs_url to latest v1
• dd7e642 Merge pull request #266 from cakoose/backport-writeHead-fix
• 68e8fd7 Merge pull request #271 from daniel-seitz/v0.3.20
• Additional commits viewable in compare view

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[codecov-commenter]

Codecov Report

Merging #187 (5e6986f) into master (8a642b5) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #187   +/-   ##
=======================================
  Coverage   76.46%   76.46%           
=======================================
  Files          19       19           
  Lines        3820     3820           
  Branches      479      479           
=======================================
  Hits         2921     2921           
  Misses        655      655           
  Partials      244      244           

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