feat(node): drop support for node 13, 15

BREAKING CHANGE: node versions 13, 15 are no longer supported.

Author: djcsdy

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [12.x, 14.x, 16.x, 17.x]
     steps:
       - name: Find yarn cache
         id: find-yarn-cache

package.json

@@ -22,7 +22,7 @@
   },
   "sideEffects": false,
   "engines": {
-    "node": ">= 12"
+    "node": "^12 || ^14 || ^16 || >=17"
   },
   "dependencies": {
     "@softwareventures/nullable": "^1.0.0 || ^1.0.0 || ^1.2.1 || ^2.0.0",