Switch from yarn to pnpm and update CI

.github/workflows/ci.yaml

@@ -10,31 +10,33 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x, 20.x]
+        node-version: [20.x, 22.x, 24.x]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v6
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      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
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x, 20.x]
+        node-version: [20.x, 22.x, 24.x]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v6
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      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

@@ -335,7 +335,7 @@ The following properties are used if present on the deployment `context` object:
 
 ## Running Tests
 
-* yarn test
+* pnpm test
 
 ## Why `ember build` and `ember test` don't work
 

RELEASE.md

@@ -6,5 +6,5 @@ This project uses release-it to release new versions.
 
 ### Commit the changelog, bump version, create a release on Github, and publish to NPM
 
-1. run `yarn release [patch|minor|major]`
+1. run `pnpm release [patch|minor|major]`
 2. review the release created on Github and edit if needed

package.json

@@ -65,7 +65,7 @@
     }
   },
   "volta": {
-    "node": "14.18.1",
-    "yarn": "1.22.17"
-  }
+    "node": "20.19.0"
+  },
+  "packageManager": "pnpm@12.15.0+sha512.b3951d6d6ff4a9f13dc7cf56cd28d2b8eb37dbcc9c68e52e1e1191873ea9f82a017287ab50baadc5ccc494f036c67c0e47eb13608c2fa36f47711b61ea128e61"
 }