Fix the 'decode_any' usage

Author: stanislav-tkach

rust/rbac-registration/src/cardano/cip509/rbac/metadata.rs

@@ -158,7 +158,7 @@ impl Decode<'_, DecodeContext<'_, '_>> for Cip509RbacMetadata {
 
                 match decode_any(d, "purpose key") {
                     Ok(v) => {
-                        purpose_key_data.insert(key, v);
+                        purpose_key_data.insert(key, v.to_vec());
                     },
                     Err(e) => {
                         decode_context

rust/rbac-registration/src/cardano/cip509/rbac/role_data.rs

@@ -96,7 +96,7 @@ impl Decode<'_, ProblemReport> for CborRoleData {
                         continue;
                     },
                 };
-                if data.extended_data.insert(key, value).is_some() {
+                if data.extended_data.insert(key, value.to_vec()).is_some() {
                     report.other(
                         &format!("Duplicated {key} key in the role extended data"),
                         context,