Merge "Downgrade the log level since the code has a fallback." into main am: 65fc729df2

Original change: https://android-review.googlesource.com/c/platform/system/security/+/3477781

Change-Id: I5240d623f47d31c5323c74a804956e755eb72581
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/keystore2/postprocessor_client/src/lib.rs b/keystore2/postprocessor_client/src/lib.rs
index 8b347f9..beeb5f5 100644
--- a/keystore2/postprocessor_client/src/lib.rs
+++ b/keystore2/postprocessor_client/src/lib.rs
@@ -77,7 +77,7 @@
             ]
         }
         Err(err) => {
-            error!("Failed to replace certificates ({err:#?}), falling back to original chain.");
+            warn!("Failed to replace certificates ({err:#?}), falling back to original chain.");
             certificates.push(Certificate { encodedCertificate: attestation_certs });
             certificates
         }