Webpacker: There is no check_yarn_integrity anymore

rails/webpacker#2518

.github/workflows/push.yml

@@ -51,7 +51,7 @@ jobs:
             ${{ runner.os }}-yarn-
 
       - name: Install Yarn packages
-        run: yarn install
+        run: yarn install --frozen-lockfile
 
       - name: Lint with ESLint
         run: yarn lint

config/webpacker.yml

@@ -6,7 +6,6 @@ default: &default
   public_root_path: public
   public_output_path: packs
   cache_path: tmp/cache/webpacker
-  check_yarn_integrity: false
   webpack_compile_output: true
 
   # Additional paths webpack should lookup modules
@@ -53,9 +52,6 @@ development:
   <<: *default
   compile: true
 
-  # Verifies that correct packages and versions are installed by inspecting package.json, yarn.lock, and node_modules
-  check_yarn_integrity: true
-
   # Reference: https://webpack.js.org/configuration/dev-server/
   dev_server:
     https: false