ci: migrate runs-on to Twilio runner labels + SHA-pin actions #149

	---
	name: Benchmark

	"on":
	- pull_request

	jobs:
	benchmark:
	strategy:
	matrix:
	ref:
	- master
	- ${{ github.sha }}

	runs-on: ubuntu-latest-large

	steps:
	- name: Setup Go
	uses: actions/setup-go@bfdd3570ce990073878bf10f6b2d79082de49492 # v2
	with:
	go-version: "1.24"

	- name: Checkout
	uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
	with:
	ref: ${{ matrix.ref }}

	- name: Run Benchmarks
	# Without 6 iterations, benchstat will claim statistical insignificance.
	run: go test -v -run '^$' -bench '(Marshal\|Unmarshal)$/codeResponse' -benchmem -benchtime 3s -cpu 1 -count 6 ./json \| tee bench.txt

	- name: Upload Benchmarks
	uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
	with:
	name: ${{ matrix.ref }}
	path: bench.txt

	benchstat:
	needs: [benchmark]
	runs-on: ubuntu-latest-large

	steps:
	- name: Setup Go
	uses: actions/setup-go@bfdd3570ce990073878bf10f6b2d79082de49492 # v2
	with:
	go-version: "1.24"

	- name: Setup Benchstat
	run: go install golang.org/x/perf/cmd/benchstat@latest

	- name: Download Benchmark Results
	uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
	with:
	path: .

	- name: Run Benchstat
	run: benchstat ./master/bench.txt ./${{ github.sha }}/bench.txt \| tee benchstat.txt

	- name: Upload Benchstat Results
	uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
	with:
	name: benchstat
	path: benchstat.txt

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