Reduce example Grafana dashboard uid lengths (#2087)

Reduce dashboard uid length

Signed-off-by: Dan Barr <[email protected]>
Co-authored-by: Dan Barr <[email protected]>

Author: danbarr

examples/otel/grafana-dashboards/toolhive-mcp-grafana-dashboard-otel-remotewrite.json

@@ -791,6 +791,6 @@
   "timepicker": {},
   "timezone": "",
   "title": "ToolHive MCP Server & Proxy Runner Dashboard - OTEL RemoteWrite to Prometheus (with kubestats)",
-  "uid": "toolhive-mcp-grafana-dashboard-otel-remotewrite",
+  "uid": "toolhive-mcp-otel-remotewrite",
   "version": 3
 }

examples/otel/grafana-dashboards/toolhive-mcp-grafana-dashboard-otel-scrape.json

@@ -791,6 +791,6 @@
   "timepicker": {},
   "timezone": "",
   "title": "ToolHive MCP Server & Proxy Runner Dashboard - Scrape from OTEL (with kubestats)",
-  "uid": "toolhive-mcp-grafana-dashboard-otel-scrape",
+  "uid": "toolhive-mcp-otel-scrape",
   "version": 9
 }