keystore2_test: Enable stress test

Bug: 266607003
Test: keystore2_test
Change-Id: Id3667a181429a077eea493963aaa6d2e6d6c38ef
diff --git a/keystore2/src/rkpd_client.rs b/keystore2/src/rkpd_client.rs
index bfc7847..be1f4fb 100644
--- a/keystore2/src/rkpd_client.rs
+++ b/keystore2/src/rkpd_client.rs
@@ -653,7 +653,6 @@
     }
 
     #[test]
-    #[ignore] // b/266607003
     fn test_stress_get_rkpd_attestation_key() {
         binder::ProcessState::start_thread_pool();
         let key_id = get_next_key_id();