Update ruff check syntax

Author: rlan

.github/workflows/python-app.yml

@@ -1,8 +1,5 @@
 # This workflow will install Python dependencies, run tests and lint with a single version of Python
 # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
-#
-# Pandas officially supports 3.8, 3.9 and 3.10.
-# Ref: https://pandas.pydata.org/docs/getting_started/install.html#python-version-support
 
 name: Testing
 
@@ -36,7 +33,7 @@ jobs:
     - name: Lint with Ruff
       run: |
         pip install ruff
-        ruff --output-format=github .
+        ruff check --output-format=github .
     - name: Test with example.csv
       run: |
         python convert.py example.csv -p test.csv