Build a non-debug apk for release

Our current process that is baked into the CI will build a debug apk and upload it to the package registry when a tag is pushed. Those debug apks can be seen in the name tor-vpn-debug.apk.

For publishing to the app store, and for the beta, we should build a non-debug apk, like we do for the onionmasq maven repository on release. Also specifically for play store we need an app bundle, a .aab