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/amazon.go

@@ -111,3 +111,7 @@ func (o rootPrivAmazon) yumUpdateInfo() bool {
 func (o rootPrivAmazon) yumChangelog() bool {
 	return false
 }
+
+func (o rootPrivAmazon) yumMakeCache() bool {
+	return false
+}