update yml

.github/workflows/linting.yml

@@ -68,8 +68,8 @@ jobs:
       - run: |
           # Run linters for openbb_platform
           if [ -n "${{ env.platform_files }}" ]; then
-            # TODO: Add mypy to this part of the linting workflow once we're ready
             pylint ${{ env.platform_files }}
+            mypy ${{ env.platform_files }}  --ignore-missing-imports  --check-untyped-defs
           else
             echo "No Python files changed in openbb_platform"
           fi