feat(backport): add support for eth_getBlockReceipts

[thomas-nguy]

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Thank you for your code, it's appreciated! :)

Summary by CodeRabbit

• New Features

  • Added support for the JSON-RPC method eth_getBlockReceipts.

• Documentation

  • Updated documentation to include the new eth_getBlockReceipts method and revised several external reference URLs for improved accuracy.
  • Removed an outdated reference in architecture documentation.

• Chores

  • Bumped Ethermint dependency version.
  • Updated package version to 1.4.8.