Bump ws from 1.0.1 to 7.3.1

Bumps [ws](https://github.com/websockets/ws) from 1.0.1 to 7.3.1.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](https://github.com/websockets/ws/compare/1.0.1...7.3.1)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -37,7 +37,7 @@
         "through": "2.2.0",
         "tmp": "~0.0.20",
         "uglify-js": "~2.6.2",
-        "ws": "1.0.1",
+        "ws": "7.3.1",
         "read": "~1.0.5",
         "form-data": "~0.2.0",
         "chai": "~1.5.0",