Fix APK packaging with Android NDK r25
ANDROID_SYSROOT_PREFIX is used in the androiddeployqt settings, so we still need to set this even with newer NDKs.
Affects all Qt6 Craft APK jobs on the CI at the moment.
ANDROID_SYSROOT_PREFIX is used in the androiddeployqt settings, so we still need to set this even with newer NDKs.
Affects all Qt6 Craft APK jobs on the CI at the moment.