feat: migrate golangci-lint from v1 to v2

[TomCN0803]

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Migrate golangci-lint from v1 to v2.

Motivation and Context

The golangci-lint has been upgraded to v2 since March 2025. The v2 of golangci-lint has simplified the linters management.

How Has This Been Tested?

Tested locally with [email protected]

Breaking Changes

No.

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Documentation update

Checklist

• [x] I have read the MCP Documentation
• [x] My code follows the repository's style guidelines
• [x] New and existing tests pass locally
• [x] I have added appropriate error handling
• [ ] I have added or updated documentation as needed

Additional context

[codecov-commenter]

Welcome to Codecov :tada:

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