Drop Node 8 support.

Author: Robert Jackson

.github/workflows/ci.yml

@@ -33,7 +33,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        node-version: [8.x, 10.x, 12.x]
+        node-version: [10.x, 12.x, 13.x]
 
     steps:
     - uses: actions/checkout@v1

package.json

@@ -92,7 +92,7 @@
     "release-it-lerna-changelog": "^1.0.3"
   },
   "engines": {
-    "node": "8.* || 10.* || >= 12.*"
+    "node": "10.* || >= 12.*"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org"