coreth atomic pkg dependency

[ceyonur]

Why this should be merged

Bumps coreth dependency & removes direct plugin/evm dependency in tests/wallet.

How this works

This pull request includes several changes to update the codebase, primarily focusing on replacing the evm package with the atomic package and simplifying the retrieval of Ethereum addresses. The most important changes include modifying import statements, updating function calls, and refactoring methods related to Ethereum addresses.

Package Replacement and Refactoring:

• Updated import statements across multiple files to replace github.com/ava-labs/coreth/plugin/evm with github.com/ava-labs/coreth/plugin/evm/atomic. [1] [2] [3] [4]
• Modified function calls to use the atomic package instead of the evm package. [1] [2] [3]

Ethereum Address Retrieval:

• Refactored methods to use the new EthAddress() function for retrieving Ethereum addresses from keys, replacing the previous evm.GetEthAddress method. [1] [2] [3]
• Added EthAddress() methods to the PublicKey and PrivateKey structs in utils/crypto/secp256k1/secp256k1.go. [1] [2]

Test and Fixture Updates:

• Removed unused evm import statements from test files and updated the usage of Ethereum address retrieval methods. [1] [2] [3]
• Updated test and fixture methods to use the new EthAddress() method for consistency. [1] [2] [3]

These changes collectively enhance the codebase by simplifying the retrieval of Ethereum addresses and consolidating the use of the atomic package.

How this was tested

Existing UTs should cover.

Need to be documented in RELEASES.md?

No