chore(deps): bump better-auth from 1.3.8 to 1.3.26

Bumps [better-auth](https://github.com/better-auth/better-auth/tree/HEAD/packages/better-auth) from 1.3.8 to 1.3.26.
- [Release notes](https://github.com/better-auth/better-auth/releases)
- [Commits](https://github.com/better-auth/better-auth/commits/v1.3.26/packages/better-auth)

---
updated-dependencies:
- dependency-name: better-auth
  dependency-version: 1.3.26
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

apps/cms/package.json

@@ -51,7 +51,7 @@
     "@vvo/tzdb": "^6.176.0",
     "ai": "^5.0.47",
     "axios": "^1.12.0",
-    "better-auth": "1.3.8",
+    "better-auth": "1.3.26",
     "canvas-confetti": "^1.9.3",
     "class-variance-authority": "^0.7.0",
     "croner": "^9.1.0",