tg-ws-proxy-rs v2.3.2

Android build reproducibility improvements, F-Droid metadata alignment, and
toolchain pinning fixes across CI and release workflows.

Why

F-Droid builds packages in an isolated Debian buildserver environment and
verifies byte-level reproducibility against developer-provided binaries.
Aligning toolchains, strip passes, path remappings, and per-ABI version codes
allows F-Droid and GitHub Actions to produce bit-for-bit identical APKs.

Changes

• Reproducible Android native libraries:
  • Pinned the Android NDK version (28.1.13356709) across the Gradle version
    catalog, GitHub workflows, and convention plugins.
  • Placed fixed path remapping (--remap-path-prefix) in .cargo/config.toml
    for Android targets so Cargo builds retain no host-dependent source paths.
• Per-ABI version codes:
  • Added package.metadata.android.version_code to Cargo.toml as the base
    version code (203010), wired to per-ABI offsets (+0 universal, +1
    armeabi-v7a, +2 arm64-v8a, +3 x86_64).
• Toolchain pinning consistency:
  • Unified all stable Rust CI and release jobs to read rust-toolchain.toml
    directly without third-party action dependencies.
  • Included rust-toolchain.toml in the Docker build context.
• Workflow simplification:
  • Removed post-test emulator APK hash assertions in favor of straightforward
    instrumentation test verification and crash reporting.