Update dependency node to v22.21.0 (#1275)

Author: bkis

.github/workflows/web-checks.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Use Node.js 20.14.0
         uses: actions/setup-node@v6
         with:
-          node-version: "22.20.0"
+          node-version: "22.21.0"
           cache: "npm"
           cache-dependency-path: "./Tekst-Web/package-lock.json"
       - run: npm install