Use 1.0.0-soon version of contract_check

Author: ethanfrey

.circleci/config.yml

@@ -944,7 +944,7 @@ jobs:
       - run:
           name: Install check_contract
           # Uses --debug for compilation speed
-          command: cargo install --debug --version 0.16.0 --features iterator --example check_contract -- cosmwasm-vm
+          command: cargo install --debug --version 1.0.0-soon --features iterator --example check_contract -- cosmwasm-vm
       - save_cache:
           paths:
             - /usr/local/cargo/registry