Use phrity/websocket instead of textalk

[RobertBoes]

It seems like textalk/websocket is no longer maintained; https://github.com/Textalk/websocket-php/pull/191#issuecomment-1819905934 / https://github.com/Textalk/websocket-php/issues/183

I made a PR to their repo, since upgrading to 1.6.3 isn't possible because it requires psr/http-message@^1.0, many Laravel apps have 2.x installed.

Installing phrity/websocket version 2.x doesn't work yet, because it has breaking changes, I can work on that too, but I think requiring ^1.5 would be a good first step as it's a drop-in replacement