ci: Configure mypy strict globally

Author: Synss

.github/workflows/typing.yml

@@ -43,4 +43,4 @@ jobs:
         run: python setup.py build_ext --inplace
 
       - name: Check typing
-        run: mypy --strict programs src tests
+        run: mypy programs src tests

pyproject.toml

@@ -24,6 +24,7 @@ line_length = 79
 
 [tool.mypy]
 show_error_codes = true
+strict = true
 
 [tool.pylint.master]
 extension-pkg-whitelist='mbedtls'