Switch to pnpm

Author: kpfefferle

.github/workflows/ci.yml

@@ -6,11 +6,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
       - name: Use Node.js
-        uses: actions/setup-node@v2
+        uses: volta-cli/action@v4
         with:
-          node-version: 20.x
-          cache: yarn
+          node-version: 18
+      - name: Install pnpm
+        run: volta install pnpm@10
       - name: Install Dependencies
-        run: yarn install
+        run: pnpm install

package.json

@@ -25,5 +25,8 @@
   },
   "ember-addon": {
     "defaultBlueprint": "aws-deploy-config"
+  },
+  "volta": {
+    "node": "20.18.2"
   }
 }