[CI] update mypy CI job to use local config (#12013)

Co-authored-by: daniel.eades <[email protected]>
Co-authored-by: Bénédikt Tran <[email protected]>

Author: 3 people

.github/workflows/lint.yml

@@ -62,9 +62,9 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install --upgrade "mypy==1.8.0" docutils-stubs types-requests
+        python -m pip install ".[lint,test]"
     - name: Type check with mypy
-      run: mypy sphinx/
+      run: mypy
 
   docs-lint:
     runs-on: ubuntu-latest

pyproject.toml

@@ -130,6 +130,7 @@ exclude = [
 ]
 
 [tool.mypy]
+files = ["sphinx"]
 check_untyped_defs = true
 disallow_incomplete_defs = true
 follow_imports = "skip"