ci: update checkout to v4 and setup python to v5 - enable caching #800

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: detect-secrets-ci

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	workflow_dispatch:
	schedule:
	- cron: '0 0 1 * *'

	jobs:
	main:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python: ['3.9', '3.10', '3.11', '3.12', '3.13']
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python }}
	- name: Install uv
	uses: astral-sh/setup-uv@v4
	with:
	enable-cache: true
	cache-dependency-glob: \|
	**/setup.py
	*/requirements.txt
	- run: uv pip install --upgrade --system setuptools pip tox virtualenv
	# Run tox only for the installed py version on the runner as outlined in the python matrix
	# Ensures the correct py version is installed and tested as opposed to 'tox' which attempts to run for all py versions in tox.ini
	- run: tox -e py
	- run: tox -e mypy

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