Use zuban instead of Mypy

.github/workflows/build.yml

@@ -21,8 +21,8 @@ jobs:
     - name: Run Flake8
       # Ignore F401, which are unused imports. flake8 is a primitive tool and is sometimes wrong.
       run: flake8 --extend-ignore F401 parso test/*.py setup.py scripts/
-    - name: Run Mypy
-      run: mypy parso setup.py
+    - name: Run Zuban
+      run: zuban check
   test:
     runs-on: ubuntu-latest
     continue-on-error: ${{ matrix.experimental }}

setup.py

@@ -58,9 +58,8 @@ setup(
         'qa': [
             # Latest version which supports Python 3.6
             'flake8==5.0.4',
-            # Latest version which supports Python 3.6
-            'mypy==0.971',
             # Arbitrary pins, latest at the time of pinning
+            'zuban==0.5.0',
             'types-setuptools==67.2.0.1',
         ],
     },