test: use `t.TempDir` to create temporary test directory #435

	name: Go

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

	jobs:
	build:
	runs-on: ubuntu-latest
	container: golang:1.19-bullseye
	defaults:
	run:
	shell: bash # needed for codecov
	services:
	postgres:
	image: postgres
	env:
	POSTGRES_PASSWORD: f1refly
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Fetch history # See https://github.com/actions/checkout/issues/477
	run: \|-
	git config --global --add safe.directory $PWD
	git fetch origin

	- name: Build and Test
	env:
	TEST_FLAGS: -v
	POSTGRES_HOSTNAME: postgres
	POSTGRES_PASSWORD: f1refly
	POSTGRES_PORT: 5432
	run: make

	- name: Upload coverage
	run: bash <(curl -s https://codecov.io/bash)

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