fix: rollback command don't actually delete multistore versions (#11361)

* rollback command don't actually delete multistore versions

Closes: #11333

- add unit tests
- use LoadVersionForOverwriting
- update tendermint dependency to 0.35.x release branch

Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com>

flushMetadata after rollback

Update server/rollback.go

Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com>

fix build

gofumpt

* fix unit test

server/types/app.go

@@ -15,6 +15,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/server/api"
 	"github.com/cosmos/cosmos-sdk/server/config"
+	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
 // ServerStartTime defines the time duration that the server need to stay running after startup
@@ -51,6 +52,9 @@ type (
 
 		// RegisterTendermintService registers the gRPC Query service for tendermint queries.
 		RegisterTendermintService(clientCtx client.Context)
+
+		// Return the multistore instance
+		CommitMultiStore() sdk.CommitMultiStore
 	}
 
 	// AppCreator is a function that allows us to lazily initialize an