feat: change db to buntdb

cmd/operator/main.go

@@ -9,8 +9,8 @@ import (
 	"os"
 
 	"gitea.com/logicamp/lc"
-	"github.com/dgraph-io/badger/v4"
 	api "github.com/logi-camp/go-flink-client"
+	"github.com/tidwall/buntdb"
 	"go.uber.org/zap"
 )
 
@@ -19,7 +19,9 @@ func main() {
 
 	crd.New()
 
-	db, err := badger.Open(badger.DefaultOptions("./db"))
+	// create database instance
+	db, err := buntdb.Open("./bunt.db")
+
 	if err != nil {
 		lc.Logger.Fatal("[main] error on open db", zap.Error(err))
 	}