fix: remove redundant metadata error logs within grace perioid

Signed-off-by: Todd Baert <[email protected]>

Author: toddbaert

providers/flagd/src/main/java/dev/openfeature/contrib/providers/flagd/resolver/process/storage/connector/sync/SyncStreamQueueSource.java

@@ -141,7 +141,8 @@ private void observeSyncStream() throws InterruptedException {
 
                         metadataResponse = localStub.getMetadata(metadataRequest.build());
                     } catch (Exception metaEx) {
-                        log.error("Metadata exception: {}, cancelling stream", metaEx.getMessage(), metaEx);
+                        // cancel the stream if the getMetadata fails, but we can keep this log quiet since the stream is restarted with this exception
+                        log.debug("Metadata exception: {}, cancelling stream", metaEx.getMessage(), metaEx);
                         context.cancel(metaEx);
                     }
                 }