fix: dont populate if component is not enabled

crates/api_models/src/health_check.rs

@@ -2,7 +2,8 @@
 pub struct RouterHealthCheckResponse {
     pub database: bool,
     pub redis: bool,
-    pub vault: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub vault: Option<bool>,
     #[cfg(feature = "olap")]
     pub analytics: bool,
     pub outgoing_request: bool,
@@ -31,5 +32,14 @@ impl From<HealthState> for bool {
         }
     }
 }
+impl From<HealthState> for Option<bool> {
+    fn from(value: HealthState) -> Self {
+        match value {
+            HealthState::Running => Some(true),
+            HealthState::Error => Some(false),
+            HealthState::NotApplicable => None,
+        }
+    }
+}
 
 impl common_utils::events::ApiEventMetric for SchedulerHealthCheckResponse {}