chore: Update Dockerfile to improve build process and upgrade pip

Dockerfile

@@ -3,9 +3,17 @@
 
 FROM tiangolo/uvicorn-gunicorn:python3.10-slim
 
-COPY . .
+# Copy the current directory contents into the container at /app
+COPY . /app
 
-WORKDIR /
+# Set the working directory to /app
+WORKDIR /app
+
+# List the contents of the working directory to debug
+RUN ls -la
+
+# Upgrade pip
+RUN pip install --no-cache-dir --upgrade pip
 
 # Install requirements.txt 
 RUN pip install --no-cache-dir --upgrade -r /requirements.txt