ci: drop node 8 testing

Author: rolandjitsu

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [8, 10, 12]
+        node-version: [10, 12, 14]
 
     steps:
       - name: Checkout repository