Sentry shutdown by using backup.sh script

### Self-Hosted Version

23.11.2

### CPU Architecture

x86_64

### Docker Version

23.0.1

### Docker Compose Version

2.16.0

### Steps to Reproduce

1. Run a normal self-hosted sentry
2. Execute `./scripts/backup.sh`

### Expected Result

Backup created and sentry keeps running like with the "old" backup method:
```
docker compose run -v $(pwd)/sentry:/sentry-data/backup --rm -T -e SENTRY_LOG_LEVEL=CRITICAL web export /sentry-data/backup/backup.json
```

### Actual Result

Backup created but sentry shutting down and not starting again after script finished. Must be manually started.

### Event ID

_No response_