add fixed dependency versions #18

	name: CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build:
	runs-on: ubuntu-20.04
	container:
	image: python:2.7.18-buster

	steps:
	- uses: actions/checkout@v2
	- name: install dependencies
	run: python -m pip install --upgrade pip && pip install -r requirements.txt
	- name: build
	run: cp config.py.example config.py && ./compile.py
	- name: run
	run: chown -R nobody:nogroup . && su nobody -s /bin/bash -c ./run.py
	- name: basic test
	run: wget http://localhost:9090 -O /dev/null && kill $(cat twistd.pid)

Provide feedback