MRG: adjust `Signature::name()` to return `Option<String>` instead of `filename()` and `md5sum()` #582

	name: codspeed-benchmarks

	on:
	# Run on pushes to the main branch
	push:
	branches:
	- "latest"
	# Run on pull requests
	pull_request:
	# `workflow_dispatch` allows CodSpeed to trigger backtest
	# performance analysis in order to generate initial data.
	workflow_dispatch:

	jobs:
	benchmarks-rust:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4

	- name: Setup rust toolchain, cache and cargo-codspeed binary
	uses: moonrepo/setup-rust@v1
	with:
	channel: stable
	cache-target: release
	bins: cargo-codspeed

	- name: Build the benchmark target(s)
	run: cargo codspeed build -p sourmash

	- name: Run the benchmarks
	uses: CodSpeedHQ/action@v3
	with:
	run: "cd src/core && cargo codspeed run"
	token: ${{ secrets.CODSPEED_TOKEN }}

Provide feedback