github/workflows: run yarn install with --frozen-lockfile

.github/workflows/cli.yml

@@ -34,7 +34,8 @@ jobs:
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
-      - run: yarn install
+      - name: yarn install
+        run: yarn install --frozen-lockfile
       - run: yarn build
       # This creates a new plugin and pollutes the workspace, so it should be run last.
       - name: verify app serve and plugin creation on Windows

.github/workflows/frontend.yml

@@ -38,7 +38,8 @@ jobs:
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
-      - run: yarn install
+      - name: yarn install
+        run: yarn install --frozen-lockfile
       - run: yarn lint
       - run: yarn build
       - run: yarn test

.github/workflows/master.yml

@@ -37,7 +37,8 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           registry-url: https://registry.npmjs.org/ # Needed for auth
-      - run: yarn install
+      - name: yarn install
+        run: yarn install --frozen-lockfile
       - run: yarn lint
       - run: yarn build
       - run: yarn test

.github/workflows/storybook-deploy.yml

@@ -39,7 +39,8 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           registry-url: https://registry.npmjs.org/ # Needed for auth
-      - run: yarn install
+      - name: yarn install
+        run: yarn install --frozen-lockfile
       - name: build storybook
         run: yarn workspace storybook build-storybook
       - name: deploy storybook to gh-pages