chore(deps): update dependency @1stg/lib-config to ^6.4.0

Author: renovate[bot]

package.json

@@ -27,7 +27,7 @@
   },
   "devDependencies": {
     "@1stg/app-config": "^4.1.3",
-    "@1stg/lib-config": "^6.1.3",
+    "@1stg/lib-config": "^6.4.0",
     "@changesets/changelog-github": "^0.5.0",
     "@changesets/cli": "^2.27.11",
     "@pkgr/webpack": "^3.4.0",