[#576] Set SyncWrites for badger writecache by default

Signed-off-by: Alejandro Lopez <a.lopez@yadro.com>

pkg/local_object_storage/writecache/writecachebadger/util.go

@@ -11,6 +11,7 @@ import (
 func OpenDB(p string, ro bool, l *logger.Logger) (*badger.DB, error) {
 	return badger.Open(badger.DefaultOptions(p).
 		WithReadOnly(ro).
+		WithSyncWrites(true).
 		WithLoggingLevel(badger.ERROR).
 		WithLogger(badgerLoggerWrapper{l}))
 }