update github workflows to use main branch

[koros]

Summary

This PR is meant to migrate github workflows to use the main branch instead of dev The issue will be fully resolved once the changes are merged to main

Closing issues

Fixes #https://github.com/microsoftgraph/msgraph-sdk-typescript/issues/484

Checklist

• [ ] I have read the CONTRIBUTING document.
• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.