DRIVERS-2550 : Summary of necessary driver changes  Add documentation for MONGODB-OIDC to existing authentication documentation. Include examples for: Azure IMDS with connection string Azure Functions/ASE with custom callback Azure AKS token with custom callback GCP IMDS with connection string GCP GKE token with custom callback See https://github.com/mongodb/mongo-python-driver/commit/2588ca3782c874fa5b6b80d886f4f5fb6607bdb3 and https://github.com/mongodb/mongo-python-driver/commit/b6f0081cf9d2af20dd9d709a7963edcd802f26b6 from the Python implementation