Update `nest-keycloak-connect`

Update `nest-keycloak-connect`

**Purpose**
Get off of alpha version.

**Acceptance Criteria**
- [ ] Check if stable version has been released (https://github.com/ferrerojosh/nest-keycloak-connect/releases)
- [ ] Update to stable version

**Additional context**
- Alpha was necessary to update NestJS and patch critical vulnerability

Start by checking the nest-keycloak-connect releases page linked in the issue, then locate the repository's dependency manifest and current alpha version. Confirm whether a stable release exists, update the dependency to that version, and verify the project's checks pass.

Written by the indexing model from the issue text.