chore(deps): update dependency pkgroll to v2.15.4

Author: renovate[bot]

package.json

@@ -76,7 +76,7 @@
     "gatsby": "5.14.1",
     "jsdom": "26.1.0",
     "memfs": "4.36.0",
-    "pkgroll": "2.15.3",
+    "pkgroll": "2.15.4",
     "prettier": "3.6.2",
     "prettier-plugin-packagejson": "2.5.19",
     "react": "18.3.1",