feat: identify addresses from etherscan when forking

[onbjerg]

Blocked by: gakonst/ethers-rs#1108

To do

• Ensure the cache path exists
• Add some tracing in the code for better visibiltiy when debugging
• Pull chain ID from provider and Etherscan key from config
• Implement rate limiting
• Filter out addresses we have already identified to save on requests

Closes #1015

[onbjerg]

Some notes:

• Some contracts may show up with the same name, especially Vyper contracts. Etherscan does not expose an API to get public labels
• The rate limit algo is pretty naive but it should work as long as there are not a lot of unidentified addresses
• It seems that some local contracts are no longer identified.. I think it's because of sparse mode, but I'm not sure yet. Waiting for feat(config): make sparse mode opt in #1191 to be merged to check

[mds1]

Some contracts may show up with the same name, especially Vyper contracts. Etherscan does not expose an API to get public labels

Could we append an index to help differentiate contracts in cases like these? For example if the contract name is Curve and there's two of them, the trace would label them Curve-1 and Curve-2. Or some other differentiator like Curve{1} also works of course.

[onbjerg]

Should be good to merge after gakonst/ethers-rs#1114 and ethers bump!

[onbjerg]

Not entirely sure why the integration tests are failing.. Is the filter directive something with the tracing crate?

[mattsse]

smol nits