Faster build

[apaetz]

No description provided.

[Copilot]

Pull request overview

This PR aims to speed up builds in the Rust workspace (and CI) by adjusting test/build configuration for the PyO3-based Python binding crates and by tuning CPU-specific compilation flags.

Changes:

• Disable the lib test harness for the binar and paulimer Python binding crates via test = false.
• Update GitHub Actions workflow steps (formatting, cargo test --all-targets, and Python bindings build) and set RUSTFLAGS for bindings builds.
• Change workspace-wide Cargo rustflags to -C target-cpu=native, and add arch-aware RUSTFLAGS selection in the ADO pipeline for wheel builds.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
paulimer/bindings/python/Cargo.toml	Disables the lib test harness for the paulimer Python binding crate.
binar/bindings/python/Cargo.toml	Disables the lib test harness for the binar Python binding crate.
.github/workflows/build.yaml	Reorders CI steps, updates cargo test flags, and consolidates Python bindings builds with explicit RUSTFLAGS.
.cargo/config.toml	Switches global workspace rustflags to target-cpu=native.
.ado/stages/build.yaml	Adds architecture-based RUSTFLAGS selection for wheel builds (x86_64 vs ARM64).