build: update pnpm to v10.20.0

See associated pull request for more information.

Author: angular-robot

package.json

@@ -30,12 +30,12 @@
     "type": "git",
     "url": "https://github.com/angular/angular-cli.git"
   },
-  "packageManager": "pnpm@10.19.0",
+  "packageManager": "pnpm@10.20.0",
   "engines": {
     "node": "^20.19.0 || ^22.12.0 || >=24.0.0",
     "npm": "Please use pnpm instead of NPM to install dependencies",
     "yarn": "Please use pnpm instead of Yarn to install dependencies",
-    "pnpm": "10.19.0"
+    "pnpm": "10.20.0"
   },
   "author": "Angular Authors",
   "license": "MIT",