chore: update components-dev-dependencies

Author: web-padawan

.github/workflows/unit-tests.yml

@@ -50,8 +50,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Install global npm dependencies
-        # magi-cli, bower and polymer-modulizer are needed to run the Polymer 3 conversion step
-        # web-component-tester is needed to run the test step
+        # bower and polymer-modulizer are needed to run the Polymer 3 conversion step
         run: "npm install --quiet --no-progress --global bower polymer-modulizer"
 
       - name: Convert the source code to Polymer 3
@@ -60,12 +59,6 @@ jobs:
           git config --local user.name "github-actions[bot]"
           npx magi p3-convert --out . --import-style=name
 
-      # Using yarn instead of npm here to check that the dependency tree does not have two
-      # versions of the same component. With P2 / Bower that is checked automatically, but
-      # with P3 / npm it is not.
-      - name: Install project npm dependencies
-        run: "yarn install --flat"
-
       # workaround for running tests on Android on SauceLabs (see wct.conf.js)
       - name: Add 'localhost-for-saucelabs' to /etc/hosts
         run: echo "127.0.0.1 localhost-for-saucelabs" | sudo tee -a /etc/hosts

package-lock.json

@@ -43,6 +43,6 @@
     "preversion": "magi update-version"
   },
   "devDependencies": {
-    "@vaadin/vaadin-component-dev-dependencies": "^3.0.0"
+    "@vaadin/vaadin-component-dev-dependencies": "vaadin/vaadin-component-dev-dependencies#feat/lockfile"
   }
 }