Update license shield in README.md to reflect MIT license #4309

	---
	name: Typing

	# yamllint disable-line rule:truthy
	on:
	push:
	pull_request:
	workflow_dispatch:

	env:
	DEFAULT_PYTHON: "3.11"

	jobs:
	mypy:
	name: mypy
	runs-on: ubuntu-latest
	steps:
	- name: ⤵️ Check out code from GitHub
	uses: actions/[email protected]
	- name: 🏗 Set up Poetry
	run: pipx install poetry
	- name: 🏗 Set up Python ${{ env.DEFAULT_PYTHON }}
	id: python
	uses: actions/[email protected]
	with:
	python-version: ${{ env.DEFAULT_PYTHON }}
	cache: "poetry"
	- name: 🏗 Install workflow dependencies
	run: \|
	poetry config virtualenvs.create true
	poetry config virtualenvs.in-project true
	- name: 🏗 Install dependencies
	run: poetry install --no-interaction
	- name: 🚀 Run mypy
	run: poetry run mypy examples src tests

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