ga: add mypy to requirements_dev

.github/workflows/mypy.yml

@@ -18,7 +18,6 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install mypy types-requests types-setuptools
           pip install -r requirements_dev.txt
 
       - name: Run MyPy

requirements_dev.txt

@@ -2,3 +2,6 @@ requests~=2.32.3
 python-dotenv~=1.0.1
 pytest~=8.3.5
 pytest-cov
+mypy
+types-requests
+types-setuptools