feat(holesky): add update dashboard scripts + doc

testnets/holesky/README.md

@@ -65,6 +65,17 @@ This will run all modules in Docker containers.
 ### Bolt Sidecar
 WIP
 
+### Observability
+commit-boost comes with various observability tools, such as Prometheus, cadvisor, and Grafana. It also comes with some pre-built dashboards,
+which can be found in the `grafana` directory.
+
+To update these dashboards, run the following command:
+```bash
+./update-grafana.sh
+```
+
+In this directory, you can also find a Bolt dashboard, which will be launched alongside the other dashboards.
+
 ### Validators
 Validators must be configured to always prefer builder proposals over their own. Refer to client documentation for the specific configuration flags.
 **If this is not set, it could lead to commitment faults**.

testnets/holesky/update-grafana.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# Get the commit-hash from first argument
+commit_hash=$1
+
+curl https://raw.githubusercontent.com/Commit-Boost/commit-boost-client/main/grafana/dashboards/dashboard.json -o ./grafana/dashboards/dashboard.json
+curl https://raw.githubusercontent.com/Commit-Boost/commit-boost-client/main/grafana/dashboards/system_metrics.json -o ./grafana/dashboards/system_metrics.json