Merge pull request #82 from maxmind/greg/fix-mypy

Install missing mypy type

Author: horgh

.github/workflows/lint.yml

@@ -17,12 +17,12 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - name: Install dependencies
         run: |
               python -m pip install --upgrade pip
-              pip install --upgrade pylint black mypy voluptuous-stubs chardet==3.0.4
+              pip install --upgrade pylint black mypy voluptuous-stubs chardet==3.0.4 types-requests
 
       - name: Install
         run: python setup.py install