fix(typescript): upgrade tsc-multi so that it works with Node 26

Author: stainless-app[bot]

package.json

@@ -50,7 +50,7 @@
     "publint": "^0.2.12",
     "ts-jest": "^29.1.0",
     "ts-node": "^10.5.0",
-    "tsc-multi": "https://github.com/stainless-api/tsc-multi/releases/download/v1.1.9/tsc-multi.tgz",
+    "tsc-multi": "https://github.com/stainless-api/tsc-multi/releases/download/v1.1.11/tsc-multi.tgz",
     "tsconfig-paths": "^4.0.0",
     "tslib": "^2.8.1",
     "typescript": "5.8.3",