refactor: use `Writer` from `@std/io` #379

	name: CI

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	ci:
	runs-on: ubuntu-latest

	services:
	redis:
	image: redis
	ports:
	# Maps port 6379 on service container to the host
	- 6379:6379

	steps:
	- name: Setup repo
	uses: actions/checkout@v4

	- name: Setup Deno
	uses: denoland/setup-deno@v1

	- name: Verify formatting, run linter, run tests and generate lcov
	run: deno task ok

	- name: Create lcov file
	run: deno task coverage --lcov --output=cov.lcov

	- name: Upload coverage
	uses: codecov/codecov-action@v4
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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