Fix(stubs): Add InferAuthenticators import for auth.ts file

[shankiflang]

❓ Type of change

• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Hello,

I've added the import of InferAuthenticators to the 3 stubs, after noticing that they weren't imported as standard. I don't know if this is normal so I'm doing this PR. I haven't tested the code because I don't know how to do it.

Regards

[thetutlage]

Thanks 👍