Bump confluent from 7.9.0 to 8.0.0

---
updated-dependencies:
- dependency-name: io.confluent:kafka-schema-registry-client
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: io.confluent:kafka-avro-serializer
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: io.confluent:kafka-protobuf-serializer
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: io.confluent:kafka-json-schema-serializer
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -14,7 +14,7 @@ apache-commons-compress = '1.26.0'
 assertj = '3.25.3'
 avro = '1.11.4'
 byte-buddy = '1.14.19'
-confluent = '7.9.0'
+confluent = '8.0.0'
 confluent-ccs = '7.9.0-ccs'
 
 mapstruct = '1.6.2'