feat: emulate package for temporary libevm registration

[ARR4N]

Why this should be merged

Provides a single point of entry for emulation of coreth and subnet-evm behaviour with respect to temporary libevm registration.

How this works

Syntactic sugar. The changes to go.mod are simply due to running go get at the latest commits on `master.

Note

Open question: this adds subnet-evm to go.mod. Do we want to actively block its import in any other package?

How this was tested

Basic integration test to demonstrate usage of the functions with respective repo "extra" types.

Need to be documented in RELEASES.md?

No

[Copilot]

Pull Request Overview

This PR introduces an emulate package that provides syntactic sugar for temporarily registering libevm extras to emulate coreth (C-Chain) and subnet-evm behavior. The package offers wrapper functions that handle temporary registration for both error-only and value-returning operations, enabling consistent emulation across the codebase.

Key Changes:

• New emulate package with functions for temporary libevm registration
• Integration test demonstrating concurrent usage with both coreth and subnet-evm
• Updated dependencies to latest commits on master for coreth, libevm, and newly added subnet-evm

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

File	Description
vms/evm/emulate/emulate.go	Core emulation wrapper functions for both repos with error-only and value-returning variants
vms/evm/emulate/emulate_test.go	Integration test verifying concurrent emulation behavior and mutual exclusion
go.mod	Dependency updates including new subnet-evm dependency and version bumps for related packages

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