chore(deps): update pnpm to v10.20.0

Author: homarr-renovate[bot]

package.json

@@ -80,7 +80,7 @@
       "last 1 safari version"
     ]
   },
-  "packageManager": "pnpm@10.15.1",
+  "packageManager": "pnpm@10.20.0",
   "engines": {
     "node": ">=22.19.0"
   }