Bump the npm_and_yarn group across 2 directories with 1 update

Bumps the npm_and_yarn group with 1 update in the / directory: [better-auth](https://github.com/better-auth/better-auth/tree/HEAD/packages/better-auth).
Bumps the npm_and_yarn group with 1 update in the /packages/plugins directory: [better-auth](https://github.com/better-auth/better-auth/tree/HEAD/packages/better-auth).


Updates `better-auth` from 1.0.8 to 1.1.6
- [Release notes](https://github.com/better-auth/better-auth/releases)
- [Commits](https://github.com/better-auth/better-auth/commits/v1.1.6/packages/better-auth)

Updates `better-auth` from 1.0.8 to 1.1.6
- [Release notes](https://github.com/better-auth/better-auth/releases)
- [Commits](https://github.com/better-auth/better-auth/commits/v1.1.6/packages/better-auth)

---
updated-dependencies:
- dependency-name: better-auth
  dependency-type: direct:development
  dependency-group: npm_and_yarn
- dependency-name: better-auth
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

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

packages/plugins/package.json

@@ -75,7 +75,7 @@
     "@types/react-dom": "18.3.1",
     "@types/validator": "^13.12.2",
     "@vitest/coverage-v8": "^2.1.7",
-    "better-auth": "1.0.8",
+    "better-auth": "1.1.6",
     "eslint": "^9.16.0",
     "rimraf": "^6.0.1",
     "tsup": "^8.3.5",