update dependencies

cloud/sam/scripts/post_turtle_training_code/Dockerfile

@@ -1,12 +1,12 @@
 FROM python:3.10-slim-bullseye
 ARG FUNCTION_DIR="/function"
 RUN apt-get update && apt-get install -y \
-    xvfb python-tk libcairo2-dev
+    xvfb python-tk ghostscript
 ENV PYTHONUNBUFFERED 1
 
 # Install the function's dependencies
 RUN pip install \
-        awslambdaric cairosvg boto3
+        awslambdaric boto3 Pillow
 
 # Set working directory to function root directory
 WORKDIR ${FUNCTION_DIR}