Update Dockerfile to install parallel package

Dockerfile

@@ -1,6 +1,8 @@
-# Start from the official Python image (or another base image if preferred)
 FROM python:3.12-slim
 
+# Install GNU Parallel and other dependencies
+RUN apt-get update && apt-get install -y parallel
+
 # Copy the entire project into the container
 COPY . /ucc
 
@@ -14,7 +16,6 @@ RUN python3 -m venv /venv
 RUN /venv/bin/pip install --no-cache-dir -r /ucc/requirements.txt
 RUN /venv/bin/pip install -e . && /venv/bin/pip show ucc  
 
-
 # Make sure the shell script is executable
 RUN chmod +x /ucc/benchmarks/scripts/run_benchmarks.sh