feat: add ws support

[clostao]

Web3BaseAdapter makes use of an underneath web3-compatible provider through which the requests are being sent. Formerly, we used ethers.providers.StaticJsonRpcProvider as the adapter's provider.

It's not a big change since the interfaces of both are equal and the operations are the same with the sole difference of the communication protocol.

I tested for Web3BaseConnector using a ws node:

• [x] Connection is established correctly
• [x] It gets information about blocks, transactions...
• [x] It executes reading operations correctly (Write ops. were not considered since these connectors are RO)

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