Replace BoltDB with sqlite

[finn-tbd]

sqlite will behave a lot more like postgres and our dev environment should at least roughly match our production environment. ref.

[frankhinek]

This would be great as I'd like to explore using something like the following as an alternative way of achieving low latency resolution and high availability for those that don't wish to rely on AWS/GCP cloud services:

• https://github.com/tursodatabase/libsql
• https://fly.io/docs/litefs/

[adalundhe]

I’ll also snag this one of y’all are alright with it!

[adalundhe]

.take

[github-actions]

Thanks for taking this issue! Let us know if you have any questions!

[adalundhe]

Alright! Starting in here - https://github.com/adalundhe/did-dht/tree/main/impl/pkg/storage/db - I'll follow the patterns here and add a sqlite package + tests matching the BoltDB/Postgres tests, get those to pass, then remove/replace the references to BoltDB. Let me know if y'all would prefer a different approach!