Use go.etcd.io/bbolt instead of github.com/boltdb/bolt

[nikolaevn]

Since github.com/boltdb/bolt is not maintained anymore. See https://github.com/boltdb/bolt?tab=readme-ov-file#a-message-from-the-author for details.

[reltuk]

@nikolaevn Do you have an example of where you see dolt pulling in github.com/boltdb/bolt?

Dolt only uses boltdb in some microbenchmarking test code, but AFAICT it already uses go.etcd.io/bbolt and there are no references to github.com/boltdb/bolt.

Thanks!