update ripple-lib in blockchain-link

[szymonlesisz]

ripple-lib is no longer maintained. it's being moved to monorepo and published as xrpl.

Currently we are using patch to pass websocket agent (TOR proxy) to RippleApi websocket constructor.

Now, everything works fine in suite structure but when implemented to trezor-connect (published to npm) this patch isn't there and it shouldnt be there.

We need to:

1. Replace ripple-lib with xrpl breaking changes expected
2. Create pull request in xrpl repo and allow passing agent option to Websocket constructor (few lines)
3. Wait for them to publish new version
4. Release new blockchain-link

This is kind of blocker for official release of trezor-connect npm package, otherwise ripple backend connections will no longer work for 3rd parties. I've panicked at first :) it's not a blocker, got fix to that