Add pnpm action-steup line

.github/workflows/storybook-tests.yml

@@ -6,17 +6,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - uses: pnpm/action-setup@v2.2.2
+        with:
+          version: 7
       - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
       - name: Install dependencies
-        run: yarn install
+        run: pnpm install
       - name: Install Playwright
         run: npx playwright install --with-deps
       - name: Build Storybook
-        run: yarn build:storybook --quiet
+        run: pnpm build:storybook --quiet
       - name: Serve Storybook and run tests
         run: |
           npx concurrently -k -s first -n "SB,TEST" -c "magenta,blue" \
             "npx http-server packages/nuka/storybook-static --port 6006" \
-            "npx wait-on tcp:6006 && yarn test:storybook"
+            "npx wait-on tcp:6006 && pnpm test:storybook"