Investigate "no _dump_data is defined for class Proc" raised by VR

https://nonprod-log.gitlab.net/app/discover#/doc/pubsub-sidekiq-inf-gstg/pubsub-sidekiq-inf-gstg-000693?id=E159BZIBxuSi6pVaNldL

173 occurrences

      "error": "no _dump_data is defined for class Proc",
      "shard": "catchall",
      "stage": "main",
      "meta.client_id": "user/3942545",
      "meta.caller_id": "Llm::CompletionWorker",
      "source": "Gitlab::Llm::Completions::ResolveVulnerability",
      "message": "LLM completion error",