Drop support for Node 10 and 15

Author: dcyriller

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ on:
 
 jobs:
   test:
-    name: Node 12.x - ubuntu
+    name: Node 16.x - ubuntu
     runs-on: ubuntu-latest
     timeout-minutes: 10
 
@@ -35,12 +35,12 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu, windows]
-        node-version: [10.x, 12.x, 14.x]
+        node-version: [12.x, 14.x, 16.x, 17.x]
 
         # excluded because it is the `test` job above
         exclude:
           - os: ubuntu
-            node-version: 12.x
+            node-version: 16.x
 
     steps:
       - uses: actions/checkout@v2
@@ -64,7 +64,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: volta-cli/action@v1
         with:
-          node-version: 12.x
+          node-version: 16.x
 
       - name: install dependencies
         run: yarn install --no-lockfile

package.json

@@ -44,7 +44,7 @@
     "prettier": "^2.3.1"
   },
   "engines": {
-    "node": "10.* || 12.* || >= 14.*"
+    "node": "12.* || 14.* || >= 16.*"
   },
   "dependencies": {
     "prettier-linter-helpers": "^1.0.0"