chore: drop node16 support (#504)

.github/workflows/build.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    name: Node.js ubuntu-latest 16.x
+    name: Node.js ubuntu-latest 18.x
     runs-on: ubuntu-latest
     steps:
       # setup ruby environment before running jonabc/setup-licensed
@@ -27,7 +27,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "18"
           cache: "pnpm"
 
       - name: Install dependencies

.github/workflows/license.yml

@@ -23,7 +23,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "18"
           cache: "pnpm"
 
       - name: Install dependencies
@@ -54,10 +54,10 @@ jobs:
 
       - uses: pnpm/action-setup@v2
 
-      - name: Use Node.js 16.x
+      - name: Use Node.js 18.x
         uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: 18.x
           cache: "pnpm"
 
       - name: Install dependencies

.github/workflows/lint.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   lint:
-    name: Node.js ubuntu-latest 16.x
+    name: Node.js ubuntu-latest 18.x
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -18,7 +18,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "18"
           cache: "pnpm"
 
       - name: Install dependencies

.github/workflows/release.yml

@@ -62,7 +62,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "18"
           cache: "pnpm"
 
       - name: Install dependencies

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x, 18.x]
+        node-version: [18.x]
         os: [ubuntu-latest, windows-latest, macos-latest]
 
     steps:
@@ -25,7 +25,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: ${{ matrix.node-version }}
           cache: "pnpm"
 
       - name: Install dependencies

.github/workflows/yamory.yml

@@ -16,7 +16,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "18"
 
       - name: download and validate Yamory script
         working-directory: /tmp

package.json

@@ -52,7 +52,7 @@
   },
   "homepage": "https://github.com/kintone/cli-kintone/#readme",
   "engines": {
-    "node": ">=16"
+    "node": ">=18"
   },
   "devDependencies": {
     "@babel/core": "^7.23.0",