warn if placing already placed agent #758

	name: Release
	on:
	push:
	tags:
	- '*'
	branches:
	- main
	- release**
	paths-ignore:
	- '**.md'
	- '**.rst'
	pull_request:
	paths-ignore:
	- '**.md'
	- '**.rst'
	workflow_dispatch:

	permissions:
	id-token: write

	jobs:
	release:
	name: Deploy release to PyPI
	runs-on: ubuntu-latest
	permissions:
	id-token: write
	steps:
	- name: Checkout source
	uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.12"
	- name: Install dependencies
	run: pip install -U pip hatch
	- name: Build distributions
	run: hatch build
	- name: Upload package as artifact to GitHub
	if: github.repository == 'projectmesa/mesa' && startsWith(github.ref, 'refs/tags')
	uses: actions/upload-artifact@v4
	with:
	name: package
	path: dist/
	- name: Publish package to PyPI
	if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
	uses: pypa/gh-action-pypi-publish@release/v1

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