feat: Add multicast tx submission for Ethereum fallback provider

[ameten]

Description

Add multicast tx submission for Ethereum fallback provider.

EthereumFallbackProvider will use different strategies to query chain RPCs:

1. If the method is eth_sendRawTransaction, it will make a parallel query to all RPC endpoints and return the first successful result. If no success, it will retry 4 times.
2. For other methods, the current functionality does not change: it will sequentially query RPC endpoints according to their priorities and adjust priorities depending on success/failure. It also retries 4 times.

Related issues

• Contributes into Multicast sending Ethereum transactions #5452

Backward compatibility

Yes

Testing

Added unit tests

[changeset-bot]

⚠️ No Changeset found

Latest commit: 44b36b2

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.53%. Comparing base (d6724c4) to head (d7bd19e).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5446   +/-   ##
=======================================
  Coverage   77.53%   77.53%           
=======================================
  Files         103      103           
  Lines        2110     2110           
  Branches      190      190           
=======================================
  Hits         1636     1636           
  Misses        453      453           
  Partials       21       21           

Components	Coverage Δ
core	87.80% <ø> (ø)
hooks	79.39% <ø> (ø)
isms	83.68% <ø> (ø)
token	91.27% <ø> (ø)
middlewares	79.80% <ø> (ø)