Log Message:
kubo: update to 0.19.0

This builds fine with the current Go version, so remove the various overrides.

- Improve the libp2p resource management integration
- PubSub message caching improvements

Gateways:
- Signed IPNS Record response format
- Example fetch and inspect IPNS record

- Addition of "autoclient" router type
- Deprecation of the ipfs pubsub commands and matching HTTP endpoints