Bump ts-node-dev from 1.0.0-pre.60 to 1.1.8 in /backend

Bumps [ts-node-dev](https://github.com/whitecolor/ts-node-dev) from 1.0.0-pre.60 to 1.1.8.
- [Release notes](https://github.com/whitecolor/ts-node-dev/releases)
- [Changelog](https://github.com/wclr/ts-node-dev/blob/master/CHANGELOG.md)
- [Commits](https://github.com/whitecolor/ts-node-dev/commits/v1.1.8)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

backend/package.json

@@ -16,7 +16,7 @@
     "@types/lodash": "4.14.172",
     "@types/socket.io": "^2.1.13",
     "@types/uuid": "^7.0.0",
-    "ts-node-dev": "^1.0.0-pre.60",
+    "ts-node-dev": "^1.1.8",
     "ts-node": "^9.0.0",
     "typescript": "^4.0.5"
   }