Bump confluent.version from 7.8.0 to 7.9.0 (#12)

Bumps `confluent.version` from 7.8.0 to 7.9.0.

Updates `io.confluent:kafka-schema-registry-client` from 7.8.0 to 7.9.0
- [Commits](confluentinc/schema-registry@v7.8.0...v7.9.0)

Updates `io.confluent:kafka-avro-serializer` from 7.8.0 to 7.9.0
- [Commits](confluentinc/schema-registry@v7.8.0...v7.9.0)

Updates `io.confluent:kafka-json-schema-serializer` from 7.8.0 to 7.9.0
- [Commits](confluentinc/schema-registry@v7.8.0...v7.9.0)

Updates `io.confluent:kafka-protobuf-serializer` from 7.8.0 to 7.9.0
- [Commits](confluentinc/schema-registry@v7.8.0...v7.9.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -15,7 +15,7 @@
     <quarkus.platform.version>3.19.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
-    <confluent.version>7.8.0</confluent.version>
+    <confluent.version>7.9.1</confluent.version>
     <testcontainers.version>1.20.4</testcontainers.version>
     <sonar-maven-plugin.version>5.1.0.4751</sonar-maven-plugin.version>
     <jacoco-maven-plugin.version>0.8.12</jacoco-maven-plugin.version>