fix(engines): support node >= 18

Author: galenhuntington

.github/workflows/ci.yaml

@@ -1,21 +1,20 @@
 name: verify
 
 on:
+  pull_request:
   push:
-    branches: [master]
-  pull_request_target:
 
 jobs:
   all:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v3
         with:
           cache: yarn
-          node-version: 16.x
+          node-version: 20.x
 
       - name: Install
         run: yarn install --frozen-lockfile

package.json

@@ -44,7 +44,7 @@
     "typescript": "5.1.6"
   },
   "engines": {
-    "node": "^18.0.0"
+    "node": ">=18"
   },
   "files": [
     "dist",