Update package.json with pnpm configuration and migrate GitHub Actions to pnpm

Author: OlehDutchenko

.github/workflows/test.yml

@@ -17,13 +17,16 @@ jobs:
       matrix:
         node-version: [22.x]
     steps:
-      - uses: actions/checkout@v1
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v4
+      - name: Enable Corepack
+        run: corepack enable
+      - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
+          cache: 'pnpm'
       - name: Install deps
-        run: npm ci
+        run: pnpm install --frozen-lockfile
       - name: Code style
-        run: npm test
+        run: pnpm test
       - name: Vitest tests
-        run: npm run vitest
+        run: pnpm run vitest

package.json

@@ -2,6 +2,12 @@
   "name": "sort-css-media-queries",
   "version": "3.0.3",
   "description": "The custom `sort` method (mobile-first / desktop-first) of CSS media queries for `postcss-sort-media-queries`, `css-mqpacker` or `pleeease` (which uses css-mqpacker) or, perhaps, something else ))",
+  "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319",
+  "pnpm": {
+    "onlyBuiltDependencies": [
+      "esbuild"
+    ]
+  },
   "main": "lib/index.js",
   "files": [
     "lib"
@@ -72,10 +78,5 @@
     "istanbul-badges-readme": "^1.9.0",
     "prettier": "^3.5.3",
     "vitest": "^3.0.7"
-  },
-  "pnpm": {
-    "onlyBuiltDependencies": [
-      "esbuild"
-    ]
   }
 }