Drop Node 10 and 15 support.

Author: Robert Jackson

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
     - uses: actions/checkout@v1
     - uses: actions/setup-node@v1
       with:
-        node-version: 12.x
+        node-version: 14.x
     - name: install dependencies
       run: yarn install
     - name: linting
@@ -32,7 +32,7 @@ jobs:
 
     strategy:
       matrix:
-        node: ['10', '12', '14']
+        node: ['12', '14', '16']
         os: [ubuntu-latest]
 
     steps:
@@ -53,7 +53,7 @@ jobs:
     - uses: actions/checkout@v1
     - uses: actions/setup-node@v1
       with:
-        node-version: '12.x'
+        node-version: '14.x'
     - name: install dependencies
       run: yarn install --no-lockfile
     - name: test

package.json

@@ -66,7 +66,7 @@
     "walk-sync": "^2.2.0"
   },
   "engines": {
-    "node": "10.* || 12.* || >= 14"
+    "node": "12.* || 14.* || >= 16"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org"