Update cpplint config to ignore newline warnings

Author: zjwhitehead

.github/workflows/config.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           python-version: 3.x
       - run: pip install cpplint
-      - run: cpplint --linelength 140 --filter=-legal/copyright,-runtime/int,-build/include_subdir,-readability/casting,-readability/todo,-build/include_order,-build/include_what_you_use --recursive ./inc/ ./lib/ ./src/
+      - run: cpplint --linelength 140 --filter=-legal/copyright,-runtime/int,-build/include_subdir,-readability/casting,-readability/todo,-build/include_order,-build/include_what_you_use,-whitespace/newline --recursive ./inc/ ./lib/ ./src/
 
   pio-test:
     name: PlatformIO Tests