chore: fix formatting

Signed-off-by: Tomás Migone <tomas@edgeandnode.com>

Author: tmigone

availability-oracle/src/test.rs

@@ -61,7 +61,7 @@ mod tests {
                 "file/ipfs".into(),
                 "substreams".into(),
             ],
-            vec![]
+            vec![],
         )
         .await
         .unwrap();