fix: greptimedb document link (open-telemetry#6517)

Co-authored-by: opentelemetrybot <[email protected]>
Co-authored-by: Tiffany Hrabusa <[email protected]>

Author: 3 people

data/ecosystem/vendors.yaml

@@ -410,7 +410,7 @@
   commercial: true
 - name: GreptimeDB
   nativeOTLP: true
-  url: https://docs.greptime.com/user-guide/ingest-data/for-observerbility/opentelemetry
+  url: https://docs.greptime.com/user-guide/ingest-data/for-observability/opentelemetry/
   contact: [email protected]
   oss: true
   commercial: true

static/refcache.json

@@ -1259,6 +1259,10 @@
     "StatusCode": 200,
     "LastSeen": "2025-02-06T02:05:12.345Z"
   },
+  "https://docs.greptime.com/user-guide/ingest-data/for-observability/opentelemetry/": {
+    "StatusCode": 200,
+    "LastSeen": "2025-03-11T15:00:43.727668424Z"
+  },
   "https://docs.greptime.com/user-guide/ingest-data/for-observerbility/opentelemetry": {
     "StatusCode": 200,
     "LastSeen": "2024-10-29T16:21:59.273877+08:00"