Merge pull request #67 from ethereum-optimism/rf/chore/non-exhaustive

chore(opdn): Comment for Exhaustive Match

bin/opdn/src/cmd/blobs.rs

@@ -72,6 +72,7 @@ fn extract_blob_data(
                     )
                 }
             },
+            // This is necessary since `TxEnvelope` is marked as non-exhaustive.
             _ => continue,
         };
         let TxKind::Call(to) = tx_kind else { continue };