add requirement file and workflow mod

Author: areed1192

.github/workflows/python-package.yml

@@ -39,4 +39,4 @@ jobs:
 
       - name: Test with Unittest.
         run: |
-          if [ -f tests/test_client.py ]; python -m unittest tests/test_client.py; fi
+          if [ -f tests/test_client.py ]; then python -m unittest tests/test_client.py; fi

requirements.txt

@@ -0,0 +1,2 @@
+fake_useragent==0.1.11
+requests==2.24.0