Auto merge of #467 - servo:dependabot/npm_and_yarn/examples/canvas_webgl_minimal/www/ws-6.2.2, r=jdm

Bump ws from 6.2.1 to 6.2.2 in /examples/canvas_webgl_minimal/www

Bumps [ws](https://github.com/websockets/ws) from 6.2.1 to 6.2.2.
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Author: bors-servo