drop support for Node < 20 (#74)

* drop support for Node < 20

* upgrade actions/setup-node to overcome compatiblity error

* disable scenarios for recent Ember releases not working yet

Author: jelhan

.github/workflows/ci.yml

@@ -20,9 +20,9 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Install Node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v5
         with:
-          node-version: 12.x
+          node-version: 20.x
           cache: yarn
       - name: Install Dependencies
         run: yarn install --frozen-lockfile
@@ -37,9 +37,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v5
         with:
-          node-version: 12.x
+          node-version: 20.x
           cache: yarn
       - name: Install Dependencies
         run: yarn install --no-lockfile
@@ -57,19 +57,19 @@ jobs:
         try-scenario:
           - ember-lts-3.24
           - ember-lts-3.28
-          - ember-release
-          - ember-beta
-          - ember-canary
+          # - ember-release
+          # - ember-beta
+          # - ember-canary
           - ember-classic
           - embroider-safe
           - embroider-optimized
 
     steps:
       - uses: actions/checkout@v3
       - name: Install Node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v5
         with:
-          node-version: 12.x
+          node-version: 20.x
           cache: yarn
       - name: Install Dependencies
         run: yarn install --frozen-lockfile

package.json

@@ -79,7 +79,7 @@
     "webpack": "5.74.0"
   },
   "engines": {
-    "node": "12.* || 14.* || >= 16"
+    "node": "20.* || 22.* || >= 24"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org"