Simplify mocking of now and make sequential now func thread safe #729

	name: CI
	on: [push, pull_request]
	jobs:
	test:
	name: Test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go-version: [1.22.x]

	services:
	redis:
	image: redis:6.2-alpine
	ports:
	- 6379:6379
	postgres:
	image: postgis/postgis:14-3.3-alpine
	env:
	POSTGRES_DB: gocommon_test
	POSTGRES_USER: gocommon_test
	POSTGRES_PASSWORD: temba
	ports:
	- 5432:5432
	options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
	minio:
	image: bitnami/minio:latest
	env:
	MINIO_ROOT_USER: root
	MINIO_ROOT_PASSWORD: tembatemba
	ports:
	- 9000:9000
	options: --health-cmd "mc ready local" --health-interval 10s --health-timeout 5s --health-retries 5

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Install Linux packages
	run: sudo apt install -y --no-install-recommends pandoc

	- name: Install Go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ matrix.go-version }}

	- name: Run tests
	run: go test -p=1 -coverprofile=coverage.text -covermode=atomic ./...

	- name: Upload coverage
	if: success()
	uses: codecov/codecov-action@v4
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	fail_ci_if_error: true

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