deps: Update to latest badger version

[jrick]

The truncate option does not exist in this version, so this also removes the ErrTruncateNeeded handling.

[jrick]

This probably also requires a major module bump to dcrdex itself, because it uses the badger types in public API, making this a breaking API change.

[JoeGruffins]

Will get this in asap.

[JoeGruffins]

Yeah this appears to break existing databases manifest has unsupported version: 4 (we support 8). Please see https://github.com/dgraph-io/badger/blob/main/docs/troubleshooting.md#i-see-manifest-has-unsupported-version-x-we-support-y-error on how to fix this

[JoeGruffins]

I guess we just have to write a db update. Would you be able to do this?

[JoeGruffins]

I will probably close for #3482 which contains your commit and adds handling for old databases. Just moves them aside, does not attempt an update.

[JoeGruffins]

Seems to be more problems, figuring them out there.

[jrick]

Seems to be more problems, figuring them out there.

the backup needs to be performed with the older badger code, and the restore done on the new version.

i don't see a great way to automatically handle this unless we import all supported badger versions into the same program (possibly with a phase out so after a certain point, you have to manually migrate if you skip too many versions?)