Replace dependency npm-run-all with npm-run-all2 ^5.0.0

Author: renovate[bot]

backend/package.json

@@ -36,7 +36,7 @@
     "canonicalize": "^2.0.0",
     "chai": "^4.4.1",
     "hardhat": "^2.21.0",
-    "npm-run-all": "^4.1.5",
+    "npm-run-all2": "^5.0.0",
     "ts-node": "^10.9.2",
     "typechain": "^8.3.2",
     "typescript": "^5.2.2"