message: make cdk version dynamic in build script
diff: +function getCDKVersion() {
  + version="1.60.0"
  +
  + readarray -t requirements <<<"$(<requirements.txt)"
  + for requirement in "${requirements[@]}"
  + do
  + if [[ "$requirement" == aws-cdk.* ]]; then
  + IFS='==' read -a fields <<<"$requirement"
  + version=${fields[2]}
  + break;
  + fi
  + done
  +
  + echo $version
  +}
  +
  readarray -t patterns < <(jq -r '.[] | keys | .[]' info.json);
  for pattern in "${patterns[@]}"
  do
  cd $pattern/python;
  if test -f "requirements.txt"; then
  + #we want to build with the version of cdk defined in requirements.txt
  + version=$(getCDKVersion)
  python3 -m venv .env;
  source .env/bin/activate;
  pip3 install -r requirements.txt;
  - readarray -t stacks < <(npx -q cdk@1.74.0 ls);
  + readarray -t stacks < <(npx -q cdk@${version} ls)
  if [[ "${#stacks[@]}" == 0 ]]; then
  exit 1
  fi
  for stack in "${stacks[@]}"
  do
  echo "npx cdk synth $stack";
  - npx cdk@1.74.0 synth "$stack";
  + npx cdk@${version} synth "$stack";
  done
  deactivate
  fi
  