feat: replace the cosmos-db.DB interface with core/store interface (#21450)

client/pruning/main.go

@@ -9,6 +9,7 @@ import (
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 
+	corestore "cosmossdk.io/core/store"
 	"cosmossdk.io/log"
 	pruningtypes "cosmossdk.io/store/pruning/types"
 	"cosmossdk.io/store/rootmulti"
@@ -107,7 +108,7 @@ Supported app-db-backend types include 'goleveldb', 'rocksdb', 'pebbledb'.`,
 	return cmd
 }
 
-func openDB(rootDir string, backendType dbm.BackendType) (dbm.DB, error) {
+func openDB(rootDir string, backendType dbm.BackendType) (corestore.KVStoreWithBatch, error) {
 	dataDir := filepath.Join(rootDir, "data")
 	return dbm.NewDB("application", backendType, dataDir)
 }