Update pnpm to v11.5.2

Author: renovate[bot]

package.json

@@ -119,7 +119,7 @@
         "test": "gscan .",
         "zip": "gulp zip"
     },
-    "packageManager": "pnpm@11.5.1",
+    "packageManager": "pnpm@11.5.2",
     "devDependencies": {
         "@tryghost/shared-theme-assets": "2.7.1",
         "@tryghost/theme-translations": "^0.0.9",