chore: upgrade camel-weaviate from Weaviate Java client v5 to v6

[orpiske]

Summary

Migrate the camel-weaviate component to use the Weaviate Java client v6 (io.weaviate:client6:6.0.1), replacing the deprecated v5 client (io.weaviate:client:5.5.0).

Changes

• Dependency upgrade: io.weaviate:client 5.5.0 -> io.weaviate:client6 6.0.1 (uber JAR to avoid protobuf version conflicts)
• Client creation: Replaced Config/WeaviateAuthClient pattern with WeaviateClient.connectToCustom() builder
• Data operations: Replaced client.data().creator()/updater()/deleter() chains with CollectionHandle.data.insert()/update()/deleteMany() API
• Query operations: Replaced GraphQL raw query builder with CollectionHandle.query.nearVector()/fetchObjectById()
• Response types: Direct objects replace Result<T> wrappers (breaking change for consumers)
• Configuration: Added grpcHost and grpcPort parameters for gRPC support (required by v6 client)
• Test container: Bumped from Weaviate 1.32.0 to 1.33.0 (minimum for v6 client)
• Test infra: Added gRPC port support to WeaviateInfraService and implementations

Breaking changes

• Response body types changed (no more Result<T> wrappers)
• Minimum Weaviate server version is now 1.33.0
• JVM flag --add-opens=java.base/java.lang=ALL-UNNAMED required at runtime

Test plan

• Unit tests pass (WeaviateComponentConfigurationTest)
• Integration tests pass (WeaviateContainerIT - all 7 operations)
• Manual verification against remote Weaviate server (WeaviateComponentIT)

[github-actions]

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[orpiske]

Please, do no accept that.

[orpiske]

I marked this one as a draft. My intention here was just to show case to a colleague the Weaviate conversion from v5 to v6 using Claude Code. However, since I'm currently busy with another activity, I don't have the time to review it and test it carefully. So, I'll keep it open briefly for reference ... but I'll be closing this one soon.

Apologies for the confusion.

[orpiske]

Closing this as @JiriOndrusek found out that, although the conversion is OK, the Weaviate client v6 is lacking a lot of functionality.