Bump pnpm from 9.12.0 to 9.15.0

Bumps [pnpm](https://github.com/pnpm/pnpm/tree/HEAD/pnpm) from 9.12.0 to 9.15.0.
- [Release notes](https://github.com/pnpm/pnpm/releases)
- [Changelog](https://github.com/pnpm/pnpm/blob/v9.15.0/pnpm/CHANGELOG.md)
- [Commits](https://github.com/pnpm/pnpm/commits/v9.15.0/pnpm)

---
updated-dependencies:
- dependency-name: pnpm
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -35,7 +35,7 @@
     "next": "^14.2.22",
     "next-auth": "^5.0.0-beta.25",
     "nodemailer": "^6.9.14",
-    "pnpm": "^9.4.0",
+    "pnpm": "^9.15.0",
     "postgres": "^3.4.4",
     "prisma": "^5.16.0",
     "react": "^18.2.0",