[network-connections-api] Update description with group_by limit (#3030)

Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com>

Author: api-clients-generation-pipeline[bot]

.generated-info

@@ -1,4 +1,4 @@
 {
-  "spec_repo_commit": "b737cc4",
-  "generated": "2025-07-28 13:12:45.774"
+  "spec_repo_commit": "0fe80dc",
+  "generated": "2025-07-28 18:49:36.074"
 }

.generator/schemas/v2/openapi.yaml

@@ -55082,7 +55082,8 @@ paths:
         schema:
           format: int64
           type: integer
-      - description: Comma-separated list of fields to group connections by.
+      - description: Comma-separated list of fields to group connections by. The maximum
+          number of group_by(s) is 10.
         in: query
         name: group_by
         schema:

src/main/java/com/datadog/api/client/v2/api/CloudNetworkMonitoringApi.java

@@ -83,7 +83,8 @@ public GetAggregatedConnectionsOptionalParameters to(Long to) {
     /**
      * Set groupBy.
      *
-     * @param groupBy Comma-separated list of fields to group connections by. (optional)
+     * @param groupBy Comma-separated list of fields to group connections by. The maximum number of
+     *     group_by(s) is 10. (optional)
      * @return GetAggregatedConnectionsOptionalParameters
      */
     public GetAggregatedConnectionsOptionalParameters groupBy(String groupBy) {