add command to install pytest in pytest workflow (#13)

* add command to install pytest in pytest workflow

* move flake8 installation to setup.py

Author: cctdaniel

.github/workflows/pytest.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install flake8
+          pip install -e '.[testing]'
 
       - name: Lint with flake8
         run: |

setup.py

@@ -1,6 +1,6 @@
 from setuptools import setup
 
-requirements = ['aiodns', 'aiohttp>=3.7.4', 'backoff', 'base58', 'loguru']
+requirements = ['aiodns', 'aiohttp>=3.7.4', 'backoff', 'base58', 'flake8', 'loguru']
 
 setup(
     name='pythclient',