chore(deps): update dependency tsdown to v0.15.6

Author: renovate[bot]

packages/api-client/package.json

@@ -54,7 +54,7 @@
     "express": "4.21.2",
     "form-data": "4.0.4",
     "lodash": "^4.17.21",
-    "tsdown": "0.15.5",
+    "tsdown": "0.15.6",
     "umi-request": "1.4.0",
     "vite": "^6.0.3",
     "vitest": "2.1.8"

packages/compiled/package.json

@@ -16,7 +16,7 @@
     "@antfu/install-pkg": "1.1.0",
     "better-auth": "1.3.7",
     "nanoid": "5.1.6",
-    "tsdown": "0.15.5",
+    "tsdown": "0.15.6",
     "zod": "3.25.63",
     "zx": "7.2.3"
   }

packages/webhook/package.json

@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "express": "4.21.2",
-    "tsdown": "0.15.5"
+    "tsdown": "0.15.6"
   },
   "bump": {
     "before": [