ci: detect pnpm from package.json (#25)

.github/workflows/ci.yaml

@@ -1,9 +1,11 @@
 name: CI
+
 on:
   push:
     branches:
       - main
   pull_request:
+
 jobs:
   test:
     name: Test
@@ -12,20 +14,24 @@ jobs:
       matrix:
         node-version: [18]
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
+
       - name: Setup
         uses: pnpm/action-setup@v4
-        with:
-          version: 8
-      - name: Checkout
-        uses: actions/checkout@v4
+
       - name: Install dependencies
         run: pnpm install
+
       - name: Build
         run: pnpm build
+
       - name: Lint
         run: pnpm lint
+
       - name: Test
         run: pnpm test

.tool-versions

@@ -1,2 +1,2 @@
-pnpm 9.4.0
+pnpm 8.15.9
 nodejs 18.20.3

package.json

@@ -10,6 +10,7 @@
   ],
   "author": "Dominic Elm",
   "main": "dist/index.js",
+  "packageManager": "pnpm@8.15.9",
   "scripts": {
     "build": "rm -rf dist && tsc -b",
     "test": "vitest run",