Update dependency ts-node-dev to v1.0.0-pre.50

Author: renovate-bot

package.json

@@ -31,7 +31,7 @@
     "typescript": "3.8.3"
   },
   "devDependencies": {
-    "ts-node-dev": "1.0.0-pre.44",
+    "ts-node-dev": "1.0.0-pre.50",
     "lint-staged": "10.1.3",
     "husky": "4.2.5",
     "prettier": "2.0.4",