Changed the node version to 18.20.8 from 16

Author: WillFortMadeTech

.github/workflows/_reusable-webapp-test.yml

@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 16.17.0
+          node-version: 18.20.8
 
       - name: Set up env vars
         env: