test: add integration test for karapace

[neverchanje]

I hereby agree to the terms of the RisingWave Labs, Inc. Contributor License Agreement.

What's changed and what's your intention?

Checklist

• I have added necessary unit tests and integration tests
  All passed https://buildkite.com/risingwavelabs/integration-tests/builds/667

Documentation

• My PR needs documentation updates. (Please use the Release note section below to summarize the impact on users)

Karapace is a drop-in replacement for Confluent Schema Registry. Developed by Aiven, it guarantees API compatibility with Schema Registry 6.1.1 and can achieve higher performance.

Please add a note about the support in https://docs.risingwave.com/docs/current/ingest-from-kafka/#read-schemas-from-schema-registry the schema registry section.

Release note

If this PR includes changes that directly affect users or other significant modifications relevant to the community, kindly draft a release note to provide a concise summary of these changes. Please prioritize highlighting the impact these changes will have on users.

[xuefengze]

update https://github.com/risingwavelabs/risingwave/blob/main/ci/scripts/notify.py#L53? So we can receive notifications when the test fails.

[yufansong]

LGTM

[neverchanje]

update https://github.com/risingwavelabs/risingwave/blob/main/ci/scripts/notify.py#L53? So we can receive notifications when the test fails.

done