Add a regression test for #2869. (#2870) #448

	name: Benchmarks

	on:
	push:
	branches: [ main, 'devnet_', 'testnet_' ]
	workflow_dispatch:

	env:
	CARGO_TERM_COLOR: always
	CARGO_NET_RETRY: 10

	jobs:
	benchmark:
	runs-on: ubuntu-latest-16-cores
	timeout-minutes: 20

	steps:
	- uses: actions/checkout@v3
	- uses: actions-rust-lang/setup-rust-toolchain@v1
	- name: Clear up some space
	run: \|
	sudo rm -rf /usr/share/dotnet
	sudo rm -rf /opt/ghc
	sudo rm -rf "/usr/local/share/boost"
	sudo rm -rf "$AGENT_TOOLSDIRECTORY"
	- name: Install Protoc
	uses: arduino/setup-protoc@v1
	with:
	repo-token: ${{ secrets.GITHUB_TOKEN }}
	- name: Run benchmarks
	run: \|
	cargo bench -p linera-service

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