Add constructs to CDK

Dockerfile.cdk

@@ -6,6 +6,6 @@ RUN apt update && \
     apt install -y curl wget git yq jq unzip nodejs npm && \
     rm -rf /var/lib/apt/lists/*
 
-RUN npm i -g aws-cdk
+RUN npm i -g aws-cdk constructs
 
 ENTRYPOINT [ "/bin/bash" ]