[sec] update 'ws' dependency as a there is a security issue.

Created by: M5oul

There is a security issue with 'ws' module
Upgrade ws dependency to 1.1.5 which fix it.

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Concerning migrating it to last versions 2 and 3, here is changelogs:

• https://github.com/websockets/ws/releases/tag/2.0.0
• https://github.com/websockets/ws/releases/tag/3.0.0

We could update it to 3.3.1. greping the code, ws.open and ws.send methods are used.