when I upload my build for beta release, every time I got App rejected from google play and the reason is:
Your app is using a version of libpng containing a security vulnerability. Please see this Google Help Center article for details, including the deadline for fixing the vulnerability.
Hello Google Play Developer,
We rejected xxxx, with package name com.xxxx.xx, for violating our Malicious Behavior or User Data policy. If you submitted an update, the previous version of your app is still available on Google Play.
This app uses software that contains security vulnerabilities for users or allows the collection of user data without proper disclosure.
Below is the list of issues and the corresponding APK versions that were detected in your recent submission. Please upgrade your app(s) as soon as possible and increment the version number of the upgraded APK.