Use node version no 14

Author: harryadel

.github/workflows/testsuite.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "12.x"
+          node-version: "14.x"
 
       - name: Install Dependencies
         run: |