[dice] derive Debug for OwnedDiceArtifacts and BccHandover

Bug: 267575445
Test: atest diced_utils_test diced_sample_inputs_test \
diced_vendor_test diced_open_dice_cbor_test \
libdiced_open_dice_nostd.integration_test \
libdiced_open_dice.integration_test diced_open_dice_cbor_test

Change-Id: I55bfe4e881aec9835667bacf719e964b43a3d81f
diff --git a/diced/open_dice/src/retry.rs b/diced/open_dice/src/retry.rs
index c28b691..b7c1a71 100644
--- a/diced/open_dice/src/retry.rs
+++ b/diced/open_dice/src/retry.rs
@@ -27,6 +27,7 @@
 /// and the BCC formatted attestation certificate chain.
 /// As we align with the DICE standards today, this is the certificate chain
 /// is also called DICE certificate chain.
+#[derive(Debug)]
 pub struct OwnedDiceArtifacts {
     /// CDI Values.
     pub cdi_values: CdiValues,