Update inject truffle step

Author: williamsfu99

.circleci/config.yml

@@ -26,7 +26,7 @@ jobs:
           command: echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" > ~/set.js/.npmrc
       - run:
           name: Inject Truffle
-          command: yarn global add truffle
+          command: yarn global add truffle --ignore-engines
       - run:
           name: Fetch Dependencies
           command: yarn install --network-concurrency 1