Test coverage: springboot autoconfigurations vs kafka-connect configuration format

[orpiske]

We need to ensure test coverage for different types of configuration formats. There are minor - intentional - differences between the configuration formats used by SpringBoot autoconfiguration [1] (ie.: camel.component.aws-s3.secret-key vs. Kafka Connect configuration [2] format camel.component.aws-s3.secretKey).

1. https://camel.apache.org/components/latest/aws-kinesis-component.html
2. https://github.com/apache/camel-kafka-connector/blob/master/connectors/camel-aws-s3-kafka-connector/src/main/java/org/apache/camel/kafkaconnector/awss3/CamelAwss3SourceConnectorConfig.java#L179