chore(deps): update dependency better-auth to v1.3.26 [security]

Author: renovate[bot]

packages/compiled/package.json

@@ -14,7 +14,7 @@
   },
   "devDependencies": {
     "@antfu/install-pkg": "1.1.0",
-    "better-auth": "1.3.7",
+    "better-auth": "1.3.26",
     "nanoid": "5.1.6",
     "tsdown": "0.15.5",
     "zod": "3.25.63",