Update version of mypy to 1.5.1 in CI to prevent bug mypy#12533

.github/workflows/pythonpackage.yml

@@ -25,7 +25,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install mypy==0.990
+        pip install mypy==1.5.1
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: mypy
       run: |