refactor: use test_secrets_store() helper in orchestrator api test

Co-authored-by: henrypark133 <[email protected]>

src/orchestrator/api.rs

@@ -458,7 +458,7 @@ mod tests {
     use crate::orchestrator::auth::TokenStore;
     use crate::orchestrator::job_manager::{ContainerJobConfig, ContainerJobManager};
     use crate::testing::StubLlm;
-    use crate::testing::credentials::TEST_CRYPTO_KEY;
+    use crate::testing::credentials::test_secrets_store;
 
     use super::*;
 
@@ -663,11 +663,7 @@ mod tests {
     #[tokio::test]
     async fn credentials_returns_secrets_when_store_configured() {
         use secrecy::SecretString;
-        let crypto = Arc::new(
-            crate::secrets::SecretsCrypto::new(SecretString::from(TEST_CRYPTO_KEY.to_string()))
-                .unwrap(),
-        );
-        let secrets_store = Arc::new(crate::secrets::InMemorySecretsStore::new(crypto));
+        let secrets_store = Arc::new(test_secrets_store());
 
         // Create a secret
         secrets_store