Azure Key Vault secret provider for Aiven for Apache Kafka® Connect

Added support for the Azure Key Vault secret provider in Aiven for Apache Kafka® Connect. The Azure Key Vault provider reads secrets from Azure Key Vault and lets connector configurations reference them using ${PROVIDER_NAME:SECRET_KEY}.

This keeps sensitive credentials, such as connection strings, API keys, and passwords, out of connector configuration files.

You can configure the Azure Key Vault secret provider using the Aiven API, Aiven CLI, or Aiven Provider for Terraform.

For more information, see Configure the Azure Key Vault secret provider.