Adding cpp files to whitespace ignore

Author: sgonorov

.pre-commit-config.yaml

@@ -6,7 +6,7 @@ repos:
     rev: v6.0.0
     hooks:
       - id: trailing-whitespace
-        exclude: '\.py$'
+        exclude: '\.(py|c|cpp|h|hpp)$'
       - id: end-of-file-fixer
       - id: check-merge-conflict
       - id: check-case-conflict