Remove KeyRepositoryInterface from \Drupal\ai\Base\AiVdbProviderClientBase

Updating to include the following params which are also unused:

• protected EventDispatcherInterface $eventDispatcher
• protected MessengerInterface $messenger

Thanks! Added a comment to the MR

We are duplicating the methods in PluginBase e.g. getPluginId() and getPluginDefinition() and the $configuration property. Why not just extend PluginBase?

Also, reverted the key module in info.yml change.

Thanks! Lot less boilerplate. Just re-running the failed test as it looks like a more random/unrelated test failure

Okay looks good thanks! We just need to do coordinated release because Pinecone & Milvus both need updates to match this (and really the other unsupported VDB providers listed on AI module homepage do as well I think).