Add CodSpeed performance benchmarks for linter #2

	name: CodSpeed

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

	permissions:
	contents: read
	id-token: write

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.sha }}
	cancel-in-progress: ${{ github.ref_name != 'main' }}

	jobs:
	benchmarks:
	name: Run benchmarks
	runs-on: codspeed-macro
	steps:
	- name: Checkout code
	uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
	with:
	submodules: true
	fetch-depth: 1

	- name: Setup Go
	uses: actions/setup-go@40f1582b2485089dde7abd97c1529aa768e1baff # v5
	with:
	go-version: "1.26.0"
	cache: false

	- name: Run benchmarks
	uses: CodSpeedHQ/action@db35df748deb45fdef0960669f57d627c1956c30 # v4.13.1
	with:
	mode: walltime
	run: go test -bench=. -benchtime=5s ./internal/linter/

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