ref(sql): Do not warn if BLOBS_BACKUP_NAME does not exist (#4256)

ref(sql): Dop not warn if BLOBS_BACKUP_NAME does not exist

It is perfectly normal for this directory to not exist.

src/sql.rs

@@ -909,6 +909,7 @@ pub async fn remove_unused_files(context: &Context) -> Result<()> {
                 }
             }
             Err(err) => {
+                if !p.ends_with(BLOBS_BACKUP_NAME) {
                     warn!(
                         context,
                         "Housekeeping: Cannot read dir {}: {:#}.",
@@ -918,6 +919,7 @@ pub async fn remove_unused_files(context: &Context) -> Result<()> {
                 }
             }
         }
+    }
 
     Ok(())
 }