fix datetime utc warning #431

	# -- coding: utf-8 --
	#
	# This file is part of Invenio.
	# Copyright (C) 2020 CERN.
	# Copyright (C) 2022-2024 Graz University of Technology.
	#
	# Invenio is free software; you can redistribute it and/or modify it
	# under the terms of the MIT License; see LICENSE file for more details.

	name: CI

	on:
	push:
	branches: master
	pull_request:
	branches: master
	schedule:
	# * is a special character in YAML so you have to quote this string
	- cron: "0 3 * * 6"
	workflow_dispatch:
	inputs:
	reason:
	description: "Reason"
	required: false
	default: "Manual trigger"

	jobs:
	Tests:
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python-version: [3.9, 3.12]
	db-service: [postgresql14, postgresql16, mysql8]
	include:
	- db-service: postgresql14
	DB: postgresql

	- db-service: postgresql16
	DB: postgresql

	- db-service: mysql8
	DB: mysql

	env:
	EXTRAS: tests,${{ matrix.DB }}

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

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	cache: pip
	cache-dependency-path: setup.cfg

	- name: Install dependencies
	run: \|
	pip install .[$EXTRAS]
	pip freeze
	docker version

	- name: Run tests
	run: \|
	./run-tests.sh

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