chore: upgrade nix shell to using a nix flake #650

	name: build
	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	merge_group:

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: denoland/setup-deno@main
	with:
	deno-version: "~1.41"
	- uses: actions/cache@v3
	with:
	path: ~/.cache/deno # see https://deno.land/manual/linking_to_external_code
	key: ${{ runner.os }}-deno # it seems there's no particular cache keying required
	restore-keys: \|
	${{ runner.os }}-deno
	- name: deno info
	run: \|
	deno --version
	deno info
	- name: lint
	run: \|
	deno lint
	- name: fmt
	run: \|
	deno fmt --check
	- name: check
	run: \|
	deno task check
	- name: test
	run: \|
	deno task test
	- name: cheap integration test
	run: \|
	deno task run
	# run tests on windows because that allows us testing path.SEP related issues in integraiton tests
	build-windows:
	runs-on: windows-latest
	steps:
	- uses: actions/checkout@v3
	- uses: denoland/setup-deno@main
	with:
	deno-version: "~1.41"
	- uses: actions/cache@v3
	with:
	path: ~/.cache/deno # see https://deno.land/manual/linking_to_external_code
	key: ${{ runner.os }}-deno # it seems there's no particular cache keying required
	restore-keys: \|
	${{ runner.os }}-deno
	- name: deno info
	run: \|
	deno --version
	deno info
	- name: test
	run: \|
	deno task test

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