changefeedccl: fix azure-event-hub uri syntactic sugar

[rharding6373]

24.1 docs suggest that users should be able to use the azure-event-hub prefix on their URIs as well as kafka, but although azure provides connection strings in a camelcase format SharedAccessKeyName=<...>;SharedAccessKey=<...>, CRDB current expects URIs prefixed with azure-event-hub to use snake case (e.g.,shared_access_key_name) for these parameters.

CDC should update the syntactic sugar around the azure-event-hub URI to support the format that azure provides to reduce friction for users and be consistent with documentation.

Jira issue: CRDB-38378

[blathers-crl]

cc @cockroachdb/cdc

[wenyihu6]

I think you just need to encode shared_access_key to get it working. I just tried on my end and it was working.

demo@127.0.0.1:26257/demoapp/movr> CREATE CHANGEFEED FOR TABLE a INTO
                                -> "azure-event-hub://wenyitest.servicebus.windows.net:9093?shared_access_key_name=RootManageSharedAccessKey&shared_access_key=redacted";
        job_id
----------------------
  965368103159988225
(1 row)

NOTICE: changefeed will emit to topic a
Time: 342ms total (execution 342ms / network 0ms)

[rharding6373]

Leaving this issue open to address ease-of-use around the CamelCase vs snake_case. Since azure provides easy to copy connection strings in CamelCase, it would be ideal to support both syntaxes.