Update kafka-schema-registry-client to 7.2.0

[github-actions]

Updates io.confluent:kafka-schema-registry-client from 7.1.2 to 7.2.0.
GitHub Release Notes - Version Diff

I'll automatically update this PR to resolve conflicts as long as you don't change it yourself.

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Adjust future updates

Add this to your .scala-steward.conf file to ignore future updates of this dependency:

updates.ignore = [ { groupId = "io.confluent", artifactId = "kafka-schema-registry-client" } ]

Or, add this to slow down future updates of this dependency:

dependencyOverrides = [{
  pullRequests = { frequency = "@monthly" },
  dependency = { groupId = "io.confluent", artifactId = "kafka-schema-registry-client" }
}]

labels: library-update, early-semver-minor, semver-spec-minor, commit-count:1