Change latest redirection to stable one for microsoft azure -> google. (

#32945)

The redirect point to latest (but we now have no latest only stable)

docs/apache-airflow-providers-microsoft-azure/redirects.txt

@@ -1,4 +1,4 @@
 connections/index.rst connections/azure.rst
 secrets-backends/index.rst secrets-backends/azure-key-vault-secrets-backend.rst
 logging.rst logging/index.rst
-transfer/azure_blob_to_gcs.rst ../../apache-airflow-providers-google/latest/operators/transfer/azure_blob_to_gcs.rst
+transfer/azure_blob_to_gcs.rst ../../apache-airflow-providers-google/stable/operators/transfer/azure_blob_to_gcs.rst