fix

Author: corona10

.github/workflows/mypy.yml

@@ -50,7 +50,7 @@ jobs:
           python-version: "3.x"
           cache: pip
           cache-dependency-path: Tools/requirements-dev.txt
+      - run: pip install -r Tools/requirements-dev.txt
       - name: Line with black
         run: black Tools/cases_generator
-      - run: pip install -r Tools/requirements-dev.txt
       - run: mypy --config-file Tools/cases_generator/mypy.ini