fix: Require a frozen lockfile when build (#68)

* feat: Add in schema in previos PR: #66

* fix: Require a frozen lockfile when build

"--frozen-lockfile" will make it so that the yarn build process
is reproducible and uses the versions of dependencies defined in
the "yarn.lock" file.

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
  - uses: actions/setup-node@v2
  with:
  node-version: 12
- - run: yarn
+ - run: yarn install --frozen-lockfile
  - run: mysql --host 127.0.0.1 --port 3306 -uroot -p -e "CREATE DATABASE casbin"
  - run: yarn format:check
  - run: yarn lint
@@ -56,7 +56,7 @@ jobs:
  - name: Run semantic-release
  if: github.repository == 'node-casbin/sequelize-adapter' && github.event_name == 'push'
  run: |
- yarn install --no-lockfile
+ yarn install --frozen-lockfile
  mysql --host 127.0.0.1 --port 3306 -uroot -p -e "CREATE DATABASE casbin"
  yarn run prepack
  yarn run release