treat failed lint as error

Author: kzubatov

.github/workflows/lint.yaml

@@ -52,3 +52,7 @@ jobs:
     # Upload review results as artifacts, a different workflow posts them
     # as comments. This is required due to security stuff.
     - uses: ZedThree/clang-tidy-review/upload@v0.21.0
+
+    # If there are any comments, fail the check
+    - if: steps.review.outputs.total_comments > 0
+      run: exit 1