terraform(deps): bump grafana/grafana

Bumps [grafana/grafana](https://github.com/grafana/terraform-provider-grafana) from 2.5.0 to 2.6.1.
- [Release notes](https://github.com/grafana/terraform-provider-grafana/releases)
- [Changelog](https://github.com/grafana/terraform-provider-grafana/blob/master/CHANGELOG.md)
- [Commits](grafana/terraform-provider-grafana@v2.5.0...v2.6.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

terraform/aws/analytical-platform-development/open-metadata/terraform.tf

@@ -30,7 +30,7 @@ terraform {
     }
     grafana = {
       source  = "grafana/grafana"
-      version = "2.5.0"
+      version = "2.6.1"
     }
   }
   required_version = "~> 1.5"