Dropped support for Python 3.7, added support for Python 3.10, upgraded dependencies and updated project info #422

	# 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:
	workflow_dispatch:
	schedule:
	- cron: '0 0 1 * *'

	jobs:
	main:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python: ['3.7', '3.8', '3.9']
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python }}
	- run: python -m pip install --upgrade 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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