Switch from yarn to pnpm

.github/workflows/ci.yml

@@ -1,8 +1,8 @@
 name: Continuous Integration
 
 on:
+  push:
   pull_request:
-    branches: [master]
 
 jobs:
   test:
@@ -13,13 +13,14 @@ jobs:
         node-version: [20.x, 22.x, 24.x]
     steps:
     - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v6
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
-        cache: 'yarn'
-    - run: yarn install
-    - run: yarn test
+        cache: 'pnpm'
+    - run: pnpm install --frozen-lockfile
+    - run: pnpm test
 
   test-floating:
     name: Floating Dependencies
@@ -29,12 +30,13 @@ jobs:
         node-version: [20.x, 22.x, 24.x]
     steps:
     - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v6
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
-        cache: 'yarn'
+        cache: 'pnpm'
     - name: install dependencies
-      run: yarn install --no-lockfile
+      run: pnpm install --no-lockfile
     - name: test
-      run: yarn test
+      run: pnpm test

README.md

@@ -241,7 +241,7 @@ The following properties are expected to be present on the deployment `context`
 
 ## Running Tests
 
-* yarn test
+* pnpm test
 
 ## Why `ember build` and `ember test` don't work
 

RELEASE.md

@@ -31,7 +31,7 @@ Once the prep work is completed, the actual release is straight forward:
 * First, ensure that you have installed your projects dependencies:
 
 ```sh
-yarn install
+pnpm install
 ```
 
 * Second, ensure that you have obtained a

package.json

@@ -58,7 +58,7 @@
     }
   },
   "volta": {
-    "node": "20.19.0",
-    "yarn": "1.22.18"
-  }
+    "node": "20.19.0"
+  },
+  "packageManager": "pnpm@12.15.0+sha512.b3951d6d6ff4a9f13dc7cf56cd28d2b8eb37dbcc9c68e52e1e1191873ea9f82a017287ab50baadc5ccc494f036c67c0e47eb13608c2fa36f47711b61ea128e61"
 }