Wrong urls in download-android-*.json files

The URLs in download-android-*.json have too many .asc.

For example in https://aus1.torproject.org/torbrowser/update_3/release/download-android-armv7.json :

{
"binary":"https://dist.torproject.org/torbrowser/12.0.2/tor-browser-12.0.2-android-armv7-multi.apk.asc",
"git_tag":"tbb-12.0.2-build1",
"sig":"https://dist.torproject.org/torbrowser/12.0.2/tor-browser-12.0.2-android-armv7-multi.apk.asc.asc","version":"12.0.2"
}