chore(deps): update dependency @sindresorhus/tsconfig to ^0.9.0

Author: renovate-bot

package.json

@@ -35,7 +35,7 @@
     "redis": "^2.8.0"
   },
   "devDependencies": {
-    "@sindresorhus/tsconfig": "^0.5.0",
+    "@sindresorhus/tsconfig": "^0.9.0",
     "@types/jest": "^24.0.15",
     "@types/node": "^12.6.2",
     "cross-env": "^6.0.0",