Add CI workaround for corepack

Author: williamgrosset

.github/workflows/playwright.yml

@@ -10,6 +10,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: Enable Corepack before setting up Node
+        run: corepack enable
       - uses: actions/setup-node@v3
         with:
           node-version: 18