importing fetch function and Response class

[Micaelbga]

Description

When I tried run the mcp server locally using claude, the error 'fetch is not defined' was returned.

Server Details

• Server: github
• Changes to: utils

Motivation and Context

This change properly runs the github mcp, fixing requests calls;

How Has This Been Tested?

I tested using Claude 3.5 to fetch my repositories;

Breaking Changes

No update configuration needed;

Types of changes

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

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

[olaservo]

Hi, thanks for opening this. I just merged the original PR that should resolve this issue so I'll close this one as a duplicate: #603