This is to resolve an error we are seeing in our arm64 dev builds
```
24 49.46 error: package `apple-xar v0.20.0` cannot be built because it requires rustc 1.81 or newer, while the currently active rustc version is 1.75.0
24 49.46 Either upgrade to rustc 1.81 or newer, or use
```
This patch adds some new steps to support the aarch64 architecture
on Linux.
An updated version of Rust is needed to compile the `selenium-manager`
binary as it’s not shipped with the `selenium-webdriver` gem yet.
In the same vein, Google doesn’t ship an aarch64 version of Chrome yet,
so it doesn’t make sense to install even Chromium in the image. We have
to rely on Firefox to run the system specs.
This uses the new sparse-registry feature from Rust 1.68 which lowers the memory usage. This avoids that cargo is killed due to an OOM issue (exit code 137) during "Updating crates.io index".
Alan Guo Xiang Tan
Loïc Guitaut
Gerhard Schlager
Rafael dos Santos Silva