Repository: traefik/traefik (language: go)

Issue:
Grafana showing milliseconds in top slow services instead of seconds
### Welcome!

- [X] Yes, I've searched similar issues on [GitHub](https://github.com/traefik/traefik/issues) and didn't find any.
- [X] Yes, I've searched similar issues on the [Traefik community forum](https://community.traefik.io) and didn't find any.

### What did you do?

Use the official standalone Dashboard:
https://grafana.com/grafana/dashboards/17346-traefik-official-standalone-dashboard/

### What did you see instead?

Instead of seconds the response time is shown in milliseconds

![Screenshot 2022-12-30 at 16 27 42](https://user-images.githubusercontent.com/65008174/210086663-ea4c59d7-9fe4-46f2-8b50-80fe7c22b9c4.png)


### What version of Traefik are you using?

Version:      2.9.6
Codename:     banon
Go version:   go1.19.4
Built:        2022-12-07T14:17:58Z
OS/Arch:      linux/amd64

### What is your environment & configuration?

```yaml
# (paste your configuration here)
```

Add more configuration information here.


### If applicable, please paste the log output in DEBUG level

_No response_


Discussion / hints:

Fix patch:
diff --git a/contrib/grafana/traefik-kubernetes.json b/contrib/grafana/traefik-kubernetes.json
index 6774af0972..ed7deaac4b 100644
--- a/contrib/grafana/traefik-kubernetes.json
+++ b/contrib/grafana/traefik-kubernetes.json
@@ -472,7 +472,7 @@
               }
             ]
           },
-          "unit": "ms"
+          "unit": "s"
         },
         "overrides": []
       },
@@ -1607,6 +1607,6 @@
   "timezone": "",
   "title": "Traefik Official Kubernetes Dashboard",
   "uid": "n5bu_kv4k",
-  "version": 5,
+  "version": 6,
   "weekStart": ""
 }
diff --git a/contrib/grafana/traefik.json b/contrib/grafana/traefik.json
index 34a1e8127e..e4dbf5220f 100644
--- a/contrib/grafana/traefik.json
+++ b/contrib/grafana/traefik.json
@@ -472,7 +472,7 @@
               }
             ]
           },
-          "unit": "ms"
+          "unit": "s"
         },
         "overrides": []
       },
@@ -1599,6 +1599,6 @@
   "timezone": "",
   "title": "Traefik Official Standalone Dashboard",
   "uid": "n5bu_kv45",
-  "version": 5,
+  "version": 6,
   "weekStart": ""
 }


Test patch: