Drop Node 8 support

Author: Turbo87

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [8.x, 10.x, 12.x]
+        node-version: [10.x, 12.x, 13.x]
 
     steps:
     - uses: actions/checkout@v1

package.json

@@ -32,6 +32,6 @@
     "prettier": "1.18.2"
   },
   "engines": {
-    "node": "8.* || >= 10.*"
+    "node": "10.* || >= 12.*"
   }
 }