fix(deps): Abort script on error

Allows us to remove some '&&' chaining while keeping well-defined
behaviour

download-dependencies.sh

@@ -1,12 +1,13 @@
 #!/bin/sh
 
-echo "Creating directory"
-mkdir -p ./dependencies && \
+set -e
+
+echo "(Re)-creating directory"
+rm -rf ./dependencies
+mkdir ./dependencies
 cd ./dependencies
-# Removing prior dependencies
-rm -rf * 
 echo "Downloading dependencies"
-curl -sS https://d2eo22ngex1n9g.cloudfront.net/Documentation/SDK/bedrock-python-sdk.zip > sdk.zip && \
+curl -sS https://d2eo22ngex1n9g.cloudfront.net/Documentation/SDK/bedrock-python-sdk.zip > sdk.zip
 echo "Unpacking dependencies"
 # (SageMaker Studio system terminals don't have `unzip` utility installed)
 if command -v unzip &> /dev/null