⬆️ Pin dependency node to 20.19.5

Author: renovate[bot]

.github/workflows/tests.yaml

@@ -45,7 +45,7 @@ jobs:
       - name: 🏗 Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "20.x"
+          node-version: "20.19.5"
 
       - name: 💻 Show PHP and NPM versions
         run: |