go-ethereum v1.10.21 API updates

[i-norden]

• Update ChainID() API endpoint: internal/ethapi: always return chain id ethereum/go-ethereum#25166
• Update tx returning API endpoints: internal/ethapi: explicitly return chain id for EIP-155 legacy txs ethereum/go-ethereum#25155

[i-norden]

This needs to be updated with the same new switch clause here: https://github.com/ethereum/go-ethereum/pull/25155/files

[i-norden]

And our ChainID endpoint https://github.com/vulcanize/ipld-eth-server/blob/ba01123f54e5d8fe99b98d26fa78f8d5b3e0d433/pkg/eth/api.go#L204 needs to be updated like https://github.com/ethereum/go-ethereum/pull/25166/files

[ABastionOfSanity]

Comments in the 1.10.21 geth release imply this is broken/incorrect in 1.10.20. Revisiting for workalike behavior in our API.

[i-norden]

@ABastionOfSanity is this resolved? I see the fixed ethereum/go-ethereum#25244 change is in, but it looks like ethereum/go-ethereum#25166 didn't make it.