chore(deps): update dependency standardx to v6 (#110)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package.json

@@ -50,7 +50,7 @@
     "mocha": "^8.0.0",
     "rimraf": "^3.0.2",
     "rollup": "^2.26.10",
-    "standardx": "^5.0.0",
+    "standardx": "^6.0.0",
     "ts-transform-default-export": "^1.0.2",
     "typescript": "^4.0.0"
   },