drop support for EOL node < 18

Author: mansona

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v3
         with:
-          node-version: 14.x
+          node-version: 18.x
           cache: npm
       - run: npm i -g npm@8
       - run: npm ci
@@ -36,7 +36,7 @@ jobs:
       - uses: mansona/npm-lockfile-version@v1
       - uses: actions/setup-node@v3
         with:
-          node-version: 14.x
+          node-version: 18.x
           cache: npm
       - run: npm i -g npm@8
       - run: npm ci
@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v3
         with:
-          node-version: 14.x
+          node-version: 18.x
           cache: npm
       - run: npm i -g npm@8
       - run: npm install --no-shrinkwrap
@@ -82,7 +82,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v3
         with:
-          node-version: 14.x
+          node-version: 18.x
           cache: npm
       - run: npm i -g npm@8
       - run: npm ci
@@ -107,7 +107,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v3
         with:
-          node-version: 14.x
+          node-version: 18.x
           cache: npm
       - run: npm i -g npm@8
       - run: npm ci

package.json

@@ -111,7 +111,7 @@
     "webpack": "^5.52.1"
   },
   "engines": {
-    "node": "12.* || 14.* || >= 16"
+    "node": "18.* || >= 20"
   },
   "ember": {
     "edition": "octane"
@@ -120,6 +120,6 @@
     "configPath": "tests/dummy/config"
   },
   "volta": {
-    "node": "16.20.1"
+    "node": "18.18.2"
   }
 }