Fix 16 KB alignment of Rust wheels

[emanuele-f]

• Closes Cryptography wheels don't support 16 KB pages #1448

Unlike the C/C++ compilers, rustc invokes the linker itself and ignores LDFLAGS, so the 16 KB max-page-size alignment (set in android-env.sh) has to be forwarded explicitly. Without this the Rust .so is linked with the default 4 KB alignment and fails to load on 16 KB page-size devices.

Verified on the Android Studio emulator with the https://github.com/emanuele-f/PCAPdroid-mitm/releases/download/v2.0/PCAPdroid-mitm_v2.0_x86_64.apk APK, using the Android 16 KB x86_64 API 37 image.

Related commits:

• CI check of the 16 KB alignment: emanuele-f/PCAPdroid-mitm@d01c33d
• Bump of the cryptography weel with the 16 KB alignment: emanuele-f@21ff4c4
• Custom wheel with the fixed 16 KB alignment: emanuele-f/chaquopy-wheels@3a73759

[mhsmith]

Thanks, I've now released 16 KB-compatible builds of cryptography 42.0.8 for Python 3.13.

This is the same version as before but with a different build number, so to make your app pick it up, you'll need to either force a full rebuild, or make any change in the pip section of your build.gradle file.