implement additional websocket upgrader options

[noot]

Proposal: [Description of the feature]

geth's websocket server has implemented extra options for the upgrader, see: https://github.com/ethereum/go-ethereum/blob/master/rpc/websocket.go#L49 also see: https://godoc.org/github.com/gorilla/websocket#Upgrader

investigate and see if they are relevant to us, and if so, implement them

Current behavior: [What currently happens]

Desired behavior: [What you would like to happen]

Use case: [Why is this important (helps with prioritizing requests)]

Requests may be closed if we're not actively planning to work on them.

[github-actions[bot]]

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