fix(scan): exec yum makecache to update metadata on RedHat based linux (#810)

* fix(scan): exec `yum makecache` to update metadata on RedHat based linux

* sudo

scan/centos.go

@@ -118,3 +118,7 @@ func (o rootPrivCentos) yumUpdateInfo() bool {
 func (o rootPrivCentos) yumChangelog() bool {
 	return false
 }
+
+func (o rootPrivCentos) yumMakeCache() bool {
+	return false
+}