ci: updates for Rust 1.81 (#4533) #1

	name: benches

	on:
	push:
	branches:
	- "main"
	pull_request:
	# `workflow_dispatch` allows CodSpeed to trigger backtest
	# performance analysis in order to generate initial data.
	workflow_dispatch:

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number \|\| github.sha }}-benches
	cancel-in-progress: true

	jobs:
	benchmarks:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: '3.12'
	- uses: dtolnay/rust-toolchain@stable
	with:
	components: rust-src

	- uses: Swatinem/rust-cache@v2
	with:
	workspaces: \|
	.
	pyo3-benches
	continue-on-error: true

	- uses: taiki-e/install-action@v2
	with:
	tool: cargo-codspeed

	- name: Install nox
	run: pip install nox

	- name: Run the benchmarks
	uses: CodSpeedHQ/action@v3
	with:
	run: nox -s codspeed
	token: ${{ secrets.CODSPEED_TOKEN }}

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