feat: gRPC query for operator and chain configuration (backport #13485)

[mergify]

This is an automatic backport of pull request #13485 done by Mergify.
Cherry-pick of c60c556 has failed:

On branch mergify/bp/release/v0.45.x/pr-13485
Your branch is up to date with 'origin/release/v0.45.x'.

You are currently cherry-picking commit c60c55616.
  (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:
	new file:   api/cosmos/base/node/v1beta1/query.pulsar.go
	new file:   api/cosmos/base/node/v1beta1/query_grpc.pb.go
	new file:   client/grpc/node/query.pb.go
	new file:   client/grpc/node/query.pb.gw.go
	new file:   client/grpc/node/service.go
	new file:   client/grpc/node/service_test.go
	new file:   proto/cosmos/base/node/v1beta1/query.proto
	modified:   server/types/app.go
	modified:   testutil/network/util.go

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   CHANGELOG.md
	deleted by us:   UPGRADING.md
	deleted by us:   api/cosmos/auth/v1beta1/query_grpc.pb.go
	deleted by us:   api/cosmos/bank/v1beta1/query.pulsar.go
	deleted by us:   runtime/app.go
	both modified:   server/start.go
	deleted by us:   simapp/app_legacy.go
	both modified:   x/auth/types/query.pb.go
	both modified:   x/bank/types/query.pb.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

[tac0turtle]

this is api breaking and missing a changelog entry. can we please revert or add a changelog