message: Use check_contract.sh helper in CI
diff: @@ -865,6 +865,7 @@ jobs:
  # create a dummy container which will hold a volume with config
  docker create -v /code --name with_code alpine /bin/true
  # copy a config file into this volume
  + docker cp ./Cargo.toml with_code:/code
  docker cp ./contracts with_code:/code
  docker cp ./packages with_code:/code
  - run:
  @@ -876,7 +877,7 @@ jobs:
  name: Check development contracts
  command: |
  echo "Checking all contracts under ./artifacts"
  - docker run --volumes-from with_code rust:1.50.0 /bin/bash -e -c 'cargo install --debug --features iterator --path ./code/packages/vm --example check_contract -- cosmwasm-vm; for W in ./code/artifacts/*.wasm; do echo -n "Checking `basename $W`... "; check_contract $W; done'
  + docker run --volumes-from with_code rust:1.50.0 /bin/bash -e -c 'cd ./code/packages/vm; ./examples/check_contract.sh ../../../code/artifacts/*.wasm'
  docker cp with_code:/code/artifacts .
  # - run:
  # name: Publish artifacts on GitHub
  