chore: Add packageManager to package.json (#8708)

Author: Koenkk

.github/workflows/ci.yml

@@ -12,8 +12,6 @@ jobs:
         steps:
             - uses: actions/checkout@v4
             - uses: pnpm/action-setup@v4
-              with:
-                  version: 9
             - uses: actions/setup-node@v4
               with:
                   node-version: 20

.github/workflows/update_deps.yml

@@ -17,8 +17,6 @@ jobs:
               with:
                   token: ${{ secrets.GH_TOKEN }}
             - uses: pnpm/action-setup@v4
-              with:
-                  version: 9
             - uses: actions/setup-node@v4
               with:
                   node-version: 20

package.json

@@ -4,6 +4,7 @@
     "description": "Collection of device converters to be used with zigbee-herdsman",
     "main": "index.js",
     "types": "index.d.ts",
+    "packageManager": "[email protected]",
     "files": [
         "/index.js",
         "/index.js.map",