Update Grafana Dashboards

[AntiD2ta]

Changes:

• Update Grafana Dashboards following https://github.com/NethermindEth/mock-avs/pull/4

Types of changes

• New feature (non-breaking change which adds functionality)

Testing

Requires testing Yes

In case you checked yes, did you write tests? No

Comments about testing , should you have some (optional)

Manually tested