Bump minimum required Node.js version to 18.x to match what SvelteKit…

… 2 needs

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '16.x'
+          node-version: '18.x'
       - name: Install dependencies
         run: npm ci
       - name: Check formatting
@@ -30,7 +30,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '16.x'
+          node-version: '18.x'
       - name: Install dependencies
         run: npm ci
       - name: Run eslint
@@ -43,7 +43,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '16.x'
+          node-version: '18.x'
       - name: Install dependencies
         run: npm ci
       - name: Run tests
@@ -59,7 +59,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '16.x'
+          node-version: '18.x'
       - name: Install dependencies
         run: npm ci
       - name: Check formatting
@@ -75,7 +75,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '16.x'
+          node-version: '18.x'
       - name: Install dependencies
         run: npm ci
       - name: Run eslint

package.json

@@ -14,7 +14,7 @@
     "test": "jest"
   },
   "engines": {
-    "node": ">= 16"
+    "node": ">= 18"
   },
   "devDependencies": {
     "@tsconfig/node16": "^16.1.1",

webif/package.json

@@ -12,6 +12,9 @@
     "prettier": "prettier --write src/",
     "prettier-check": "prettier --check src/"
   },
+  "engines": {
+    "node": ">= 18"
+  },
   "devDependencies": {
     "@sveltejs/adapter-static": "^3.0.1",
     "@sveltejs/kit": "^2.5.0",