chore(deps)(deps): bump @better-auth/core from 1.7.0-rc.1 to 1.7.0-rc.2

Bumps [@better-auth/core](https://github.com/better-auth/better-auth/tree/HEAD/packages/core) from 1.7.0-rc.1 to 1.7.0-rc.2.
- [Release notes](https://github.com/better-auth/better-auth/releases)
- [Changelog](https://github.com/better-auth/better-auth/blob/v1.7.0-rc.2/packages/core/CHANGELOG.md)
- [Commits](https://github.com/better-auth/better-auth/commits/v1.7.0-rc.2/packages/core)

---
updated-dependencies:
- dependency-name: "@better-auth/core"
  dependency-version: 1.7.0-rc.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

packages/plugins/plugin-auth/package.json

@@ -18,7 +18,7 @@
     "test": "vitest run"
   },
   "dependencies": {
-    "@better-auth/core": "1.7.0-rc.1",
+    "@better-auth/core": "1.7.0-rc.2",
     "@better-auth/oauth-provider": "1.7.0-rc.1",
     "@better-auth/scim": "1.7.0-rc.1",
     "@better-auth/sso": "1.7.0-rc.1",