Environment:
Confluent Stack running using Docker Compose (Kafka, KafkaConnect, Zookeeper, etc.) Version: 7.3.0
ConfigProvider being used: SecretsManagerConfigProvider - https://github.com/jcustenborder/kafka-config-provider-aws
Mongo Source Connector being used: https://www.confluent.io/hub/mongodb/kafka-connect-mongodb

Problem:
When using the Kafka Connect REST API to either validate or create a new MongoSourceConnector instance when using the above configuration provider to replace the values of secret configuration items in the configuration as below. I get the error - Invalid value "${secretmanager:dev/db/mongo/test/connection:uri}" for configuration connection.uri

Additionally, I am using an AWS Profile to provide the AWS credentials and I can confirm that I can fetch the secrets from AWS Secrets Manager just fine via the AWS CLI for the profile being used. The AWS_PROFILE and AWS_SHARED_CREDENTIALS_FILE environment variables have been set on the Kafka Connect container as well. Also, the Mongo Source connector works just fine when not using a config provider and with a directly supplied connection.url value.

 {
  "connector.class" : "com.mongodb.kafka.connect.MongoSourceConnector",
  "config.providers" : "secretmanager",
  "config.providers.secretmanager.class"  : "com.github.jcustenborder.kafka.config.aws.SecretsManagerConfigProvider",
  "config.providers.secretmanager.param.aws.region" : "us-east-1",
  "tasks.max" : 1,
  "key.converter" : "io.confluent.connect.avro.AvroConverter",
  "value.converter" : "io.confluent.connect.avro.AvroConverter",
  "errors.tolerance" : "all",
  "errors.log.enable": "true",
  "errors.log.include.messages" : "false",
  "errors.deadletterqueue.context.headers.enable": "true",
  "errors.deadletterqueue.topic.name" : "dlq",
  "connection.uri" : "${secretmanager:dev/db/mongo/test/connection:uri}"
}

Could this issue be linked to, or a regression of, #737 ?