Release version 5.0.0: plugin now requires Grafana 10.4.8+ (#1945)

Changes:

- Use 10.4.8 as minimal supported Grafana version in plugins that
previously supported v9.
- Bump version to 5.0.0 as we are changing min supported Grafana version

src/plugin.json

@@ -65,8 +65,8 @@
     }
   ],
   "dependencies": {
-    "grafanaDependency": ">=9.3.0",
-    "grafanaVersion": "9.3",
+    "grafanaDependency": ">=10.4.8",
+    "grafanaVersion": "10.4",
     "plugins": []
   }
 }