chore(deps): update pnpm to v9.15.6

Author: renovate[bot]

package.json

@@ -12,7 +12,7 @@
   },
   "type": "module",
   "private": true,
-  "packageManager": "pnpm@9.15.5",
+  "packageManager": "pnpm@9.15.6",
   "devDependencies": {
     "@changesets/cli": "^2.27.10",
     "@chromatic-com/storybook": "^3.2.2",