Update version #14

	name: Update version

	on:
	schedule:
	# Run at 10 am UTC on day-of-month 1 in January, May, and September.
	- cron: "0 10 1 1,5,9 *"

	jobs:
	update-version:
	# This workflow is only of value to PyBaMM and would always be skipped in forks
	if: github.repository_owner == 'pybamm-team'
	runs-on: ubuntu-latest

	steps:
	- name: Get current date for the first release candidate
	run: \|
	echo "VERSION=$(date +'v%y.%-m').0" >> $GITHUB_ENV

	- uses: actions/checkout@v4
	with:
	ref: 'develop'

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.12

	- name: Install dependencies
	run: \|
	pip install -e ".[all]"

	# Update all the version strings and add CHANGELOG headings
	- name: Update version
	run: python scripts/update_version.py

	# Create a new version branch for the release and commit
	- uses: EndBug/add-and-commit@v9
	with:
	message: 'Bump to ${{ env.VERSION }}'
	new_branch: '${{ env.VERSION }}'

	# Create a PR from version branch to main
	- name: Make a PR from ${{ env.VERSION }} to main
	id: release_pr
	uses: repo-sync/pull-request@v2
	with:
	source_branch: '${{ env.VERSION }}'
	destination_branch: "main"
	pr_title: "Make release ${{ env.VERSION }}"
	pr_body: "Check the [release workflow](https://github.com/pybamm-team/PyBaMM/blob/develop/.github/release_workflow.md)"
	github_token: ${{ secrets.GITHUB_TOKEN }}

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