Bump @c15t/nextjs from 1.8.6 to 2.1.0

Bumps [@c15t/nextjs](https://github.com/c15t/c15t/tree/HEAD/packages/nextjs) from 1.8.6 to 2.1.0.
- [Release notes](https://github.com/c15t/c15t/releases)
- [Changelog](https://github.com/c15t/c15t/blob/main/packages/nextjs/CHANGELOG.md)
- [Commits](https://github.com/c15t/c15t/commits/@c15t/nextjs@2.1.0/packages/nextjs)

---
updated-dependencies:
- dependency-name: "@c15t/nextjs"
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -23,7 +23,7 @@
     "dead-code": "knip"
   },
   "dependencies": {
-    "@c15t/nextjs": "^1.8.6",
+    "@c15t/nextjs": "^2.1.0",
     "@neondatabase/serverless": "^1.1.0",
     "@octokit/auth-app": "^8.2.0",
     "@octokit/rest": "^22.0.1",