Create new scenario [REST Proxy] in [Kafka]

[adriens]

Requirements

• [x] I have checked that such a scenario does not already exist in the target course
• [x] Existing course name : Kafka
• [x] Requested Scenario name : REST Proxy
• [x] Explain your motivation : this may help a lot for ETL integrations that nativelly support REST but not Kafka connectors

Optional

• https://docs.confluent.io/platform/current/tutorials/examples/clients/docs/rest-proxy.html
• https://docs.confluent.io/platform/current/kafka-rest/index.html

Linked issues

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