build(deps): bump better-auth from 1.2.7 to 1.4.5

Bumps [better-auth](https://github.com/better-auth/better-auth/tree/HEAD/packages/better-auth) from 1.2.7 to 1.4.5.
- [Release notes](https://github.com/better-auth/better-auth/releases)
- [Commits](https://github.com/better-auth/better-auth/commits/v1.4.5/packages/better-auth)

---
updated-dependencies:
- dependency-name: better-auth
  dependency-version: 1.4.5
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -38,7 +38,7 @@
     "@trpc/react-query": "11.1.1",
     "@trpc/tanstack-react-query": "11.1.1",
     "babel-plugin-react-compiler": "19.1.0-rc.2",
-    "better-auth": "^1.2.7",
+    "better-auth": "^1.4.5",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",