feat: improved schema for finalized bundles query (backport #104)

[mergify]

This is an automatic backport of pull request #104 done by Mergify.
Cherry-pick of cf4857f has failed:

On branch mergify/bp/release/v1.2.x/pr-104
Your branch is up to date with 'origin/release/v1.2.x'.

You are currently cherry-picking commit cf4857f.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   docs/swagger.yml
	modified:   proto/kyve/query/v1beta1/bundles.proto
	modified:   testutil/integration/checks.go
	modified:   x/bundles/keeper/getters_bundles.go
	modified:   x/bundles/types/types.go
	modified:   x/query/client/cli/query_finalized_bundles.go
	deleted:    x/query/keeper/grpc_query_finalized_bundle.go
	new file:   x/query/keeper/grpc_query_finalized_bundles.go
	new file:   x/query/spec/01_concept.md
	modified:   x/query/types/bundles.pb.go
	modified:   x/query/types/bundles.pb.gw.go

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   CHANGELOG.md
	deleted by us:   app/upgrades/v1_3/upgrade.go
	both modified:   proto/kyve/bundles/v1beta1/bundles.proto
	both modified:   x/bundles/types/bundles.pb.go
	both modified:   x/bundles/types/keys.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

---

Mergify commands and options

More conditions and actions can be found in the documentation.

You can also trigger Mergify actions by commenting on this pull request:

• @Mergifyio refresh will re-evaluate the rules
• @Mergifyio rebase will rebase this PR on its base branch
• @Mergifyio update will merge the base branch into this PR
• @Mergifyio backport <destination> will backport this PR on <destination> branch

Additionally, on Mergify dashboard you can:

• look at your merge queues
• generate the Mergify configuration with the config editor.

Finally, you can contact us on https://mergify.com