Add API Key ID to rum application response (#939)

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

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

.generator/schemas/v2/openapi.yaml

@@ -35837,6 +35837,12 @@ components:
     RUMApplicationAttributes:
       description: RUM application attributes.
       properties:
+        api_key_id:
+          description: ID of the API key associated with the application.
+          example: 123456789
+          format: int32
+          maximum: 2147483647
+          type: integer
         application_id:
           description: ID of the RUM application.
           example: abcd1234-0000-0000-abcd-1234abcd5678

src/datadogV2/model/model_rum_application_attributes.rs

@@ -11,6 +11,9 @@ use std::fmt::{self, Formatter};
 #[skip_serializing_none]
 #[derive(Clone, Debug, PartialEq, Serialize)]
 pub struct RUMApplicationAttributes {
+    /// ID of the API key associated with the application.
+    #[serde(rename = "api_key_id")]
+    pub api_key_id: Option<i32>,
     /// ID of the RUM application.
     #[serde(rename = "application_id")]
     pub application_id: String,
@@ -67,6 +70,7 @@ impl RUMApplicationAttributes {
         updated_by_handle: String,
     ) -> RUMApplicationAttributes {
         RUMApplicationAttributes {
+            api_key_id: None,
             application_id,
             client_token,
             created_at,
@@ -84,6 +88,11 @@ impl RUMApplicationAttributes {
         }
     }
 
+    pub fn api_key_id(mut self, value: i32) -> Self {
+        self.api_key_id = Some(value);
+        self
+    }
+
     pub fn hash(mut self, value: String) -> Self {
         self.hash = Some(value);
         self
@@ -125,6 +134,7 @@ impl<'de> Deserialize<'de> for RUMApplicationAttributes {
             where
                 M: MapAccess<'a>,
             {
+                let mut api_key_id: Option<i32> = None;
                 let mut application_id: Option<String> = None;
                 let mut client_token: Option<String> = None;
                 let mut created_at: Option<i64> = None;
@@ -145,6 +155,12 @@ impl<'de> Deserialize<'de> for RUMApplicationAttributes {
 
                 while let Some((k, v)) = map.next_entry::<String, serde_json::Value>()? {
                     match k.as_str() {
+                        "api_key_id" => {
+                            if v.is_null() {
+                                continue;
+                            }
+                            api_key_id = Some(serde_json::from_value(v).map_err(M::Error::custom)?);
+                        }
                         "application_id" => {
                             application_id =
                                 Some(serde_json::from_value(v).map_err(M::Error::custom)?);
@@ -217,6 +233,7 @@ impl<'de> Deserialize<'de> for RUMApplicationAttributes {
                     .ok_or_else(|| M::Error::missing_field("updated_by_handle"))?;
 
                 let content = RUMApplicationAttributes {
+                    api_key_id,
                     application_id,
                     client_token,
                     created_at,