Update dependency tslint-config-standard to v9

Author: renovate-bot

package.json

@@ -31,7 +31,7 @@
     "typescript": "^3.1.1",
     "standard": "^12.0.1",
     "tslint": "^5.11.0",
-    "tslint-config-standard": "^8.0.1",
+    "tslint-config-standard": "^9.0.0",
     "jest": "^24.0.0",
     "babel-jest": "^24.0.0",
     "ts-jest": "^24.0.0",