ci: use global .node-version for correct version

.github/workflows/playwright.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "14.x"
+          node-version-file: ".node-version"
       - name: Install dependencies
         run: npm ci
       - name: Install Playwright Browsers

.github/workflows/pr.yml

@@ -14,9 +14,11 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: ".node-version"
       - name: Format files
         run: make format
-
       - uses: stefanzweifel/git-auto-commit-action@v5
         name: Commit possible changes
         with:

.node-version

@@ -0,0 +1 @@
+v18