Fix Dockerfile build command for moxygen

Author: afrind

docker/Dockerfile

@@ -61,7 +61,7 @@ COPY . .
 RUN ./build/fbcode_builder/getdeps.py install-system-deps --recursive moxygen                                                                           
 
 # Limit parallelism to 2 jobs to avoid OOM on GitHub Actions runners (7GB RAM)
-RUN ./build/fbcode_builder/getdeps.py build --allow-system-packages --num-jobs 2 --verbose moxygen 2>&1 || \
+RUN ./build/fbcode_builder/getdeps.py build --allow-system-packages --verbose moxygen 2>&1 || \
     (echo "=== Build failed, showing logs ===" && \
      find /tmp -name "*.log" -type f -exec echo "=== {} ===" \; -exec cat {} \; 2>/dev/null; \
      exit 1)