🔧 general: Update node version for testing

Author: yashk2000

.github/workflows/nodejstests.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [8.x, 10.x, 12.x]
+        node-version: [12.x]
 
     steps:
     - uses: actions/checkout@v2