refactor: updated validate workflow continue-on-error node version

Author: BilalQamar95

.github/workflows/validate.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         node: [18, 20]
-    continue-on-error: ${{ matrix.node }}
+    continue-on-error: ${{ matrix.node == 20 }}
     steps:
     - uses: actions/checkout@v3
     - uses: actions/setup-node@v4