Bump com.mysql:mysql-connector-j from 9.0.0 to 9.1.0

Bumps [com.mysql:mysql-connector-j](https://github.com/mysql/mysql-connector-j) from 9.0.0 to 9.1.0.
- [Changelog](https://github.com/mysql/mysql-connector-j/blob/release/9.x/CHANGES)
- [Commits](mysql/mysql-connector-j@9.0.0...9.1.0)

---
updated-dependencies:
- dependency-name: com.mysql:mysql-connector-j
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

shared-jar/build.gradle.kts

@@ -10,7 +10,7 @@ dependencies {
 
     // MySQL via HikariCP (2,725 KB)
     api("com.zaxxer:HikariCP:6.0.0")
-    api("com.mysql:mysql-connector-j:9.0.0") { exclude("com.google.protobuf", "protobuf-java") }
+    api("com.mysql:mysql-connector-j:9.1.0") { exclude("com.google.protobuf", "protobuf-java") }
 
     // RabbitMQ amqp-client (732 KB)
     api("com.rabbitmq:amqp-client:5.22.0")