Add grafana to the o11y module with a stable VM endpoint

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Active project leaders: Arkadii Yakovets -- [GitHub](https://github.com/arkid15r/) · [LinkedIn](https://www.linkedin.com/in/arkid15r/) · [Slack](https://owasp.slack.com/team/U060W3NKLTF); Kate Golovanova -- [GitHub](https://github.com/kasya/) · [LinkedIn](https://www.linkedin.com/in/kate-golovanova/) · [Slack](https://owasp.slack.com/team/U07PWB1JZ6Z)

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**Is your feature request related to a problem? Please describe.**
The observability module provisions vm storage but has no way to visualize the metrics, and no stable address for anything to reach VM.

**Describe the solution you'd like**
- add grafana service provisioned with vm
- A stable endpoint for VM
- ALB listener for grafana access
- Grafana secret in AWS secret manager

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Are you going to work on implementing this?**

- [x] Yes
- [ ] No

**Additional context**
Add any other context or screenshots about the feature request here.