Bump pnpm to 9.15.3 (mui#16151)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -200,9 +200,9 @@
     "react-is": "^19.0.0",
     "@types/node": "^20.17.12"
   },
-  "packageManager": "[email protected].2",
+  "packageManager": "[email protected].3",
   "engines": {
-    "pnpm": "9.15.2"
+    "pnpm": "9.15.3"
   },
   "pnpm": {
     "patchedDependencies": {