remove hashicorp-forge/bbolt and replace with official beta release

[raskchanky]

Description

This removes our dependence on hashicorp-forge/bbolt and replaces it with the official etcd-io/bbolt. Note that the fix in question, which we created the hashicorp-forge/bbolt for in the beginning, will be part of the 1.4.0 release, not part of the 1.3.x release that we currently use. That fix is here if people are interested. v1.4.0-beta.0 is the latest tag currently available.

I'm guessing we want to move off the beta tag once a stable tag has been cut but given the pace at which bbolt cuts releases, that might not be for awhile, and the move off of hashicorp-forge/bbolt needs to happen in the next few weeks for compliance reasons.

I ran go mod tidy and make proto because CI told me they needed to be run.

TODO only if you're a HashiCorp employee

• Backport Labels: If this fix needs to be backported, use the appropriate backport/ label that matches the desired release branch. Note that in the CE repo, the latest release branch will look like backport/x.x.x, but older release branches will be backport/ent/x.x.x+ent.
  • LTS: If this fixes a critical security vulnerability or severity 1 bug, it will also need to be backported to the current LTS versions of Vault. To ensure this, use all available enterprise labels.
• ENT Breakage: If this PR either 1) removes a public function OR 2) changes the signature
  of a public function, even if that change is in a CE file, double check that
  applying the patch for this PR to the ENT repo and running tests doesn't
  break any tests. Sometimes ENT only tests rely on public functions in CE
  files.
• Jira: If this change has an associated Jira, it's referenced either
  in the PR description, commit message, or branch name.
• RFC: If this change has an associated RFC, please link it in the description.
• ENT PR: If this change has an associated ENT PR, please link it in the
  description. Also, make sure the changelog is in this PR, not in your ENT PR.

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