chore(deps): update dependency turbo to v2.6.1

Author: renovate[bot]

package.json

@@ -68,7 +68,7 @@
     "rollup-plugin-dts": "6.1.1",
     "ts-node": "10.9.2",
     "tsdown": "0.15.12",
-    "turbo": "2.5.8",
+    "turbo": "2.6.1",
     "typescript": "5.9.3",
     "typescript-eslint": "8.29.1",
     "vitest": "3.1.1"