chore(deps): bump grafana/grafana from 12.2.1 to 12.3.0

Bumps grafana/grafana from 12.2.1 to 12.3.0.

---
updated-dependencies:
- dependency-name: grafana/grafana
  dependency-version: 12.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Dockerfile

@@ -1,3 +1,3 @@
-FROM grafana/grafana:12.2.1
+FROM grafana/grafana:12.3.0
 
 COPY files/conf/provisioning /etc/grafana/provisioning