Update TypeScript in apigen/infra to v6

TypeScript 6 no longer includes every package in typeRoots by default,
so list the Node.js types explicitly.

Amp-Thread-ID: https://ampcode.com/threads/T-01a176c6-528a-7430-b296-e66930d153b4

Author: ondrejmirtes

apigen/infra/package-lock.json

@@ -23,7 +23,7 @@
 		"aws-cdk-lib": "^2.180.0",
 		"constructs": "^10.4.2",
 		"ts-node": "^10.9.2",
-		"typescript": "^5.7.2",
+		"typescript": "^6.0.0",
 		"vitest": "^5.0.0"
 	}
 }

apigen/infra/package.json

@@ -20,7 +20,8 @@
 		"resolveJsonModule": true,
 		"esModuleInterop": true,
 		"skipLibCheck": true,
-		"typeRoots": ["./node_modules/@types"]
+		"typeRoots": ["./node_modules/@types"],
+		"types": ["node"]
 	},
 	"include": ["bin/**/*.ts", "lib/**/*.ts", "test/**/*.ts"],
 	"exclude": ["node_modules", "cdk.out"]