fix: support postgres custom type

See issue https://github.com/launchbadge/sqlx/issues/1920

sqlx-postgres/src/types/record.rs

@@ -133,7 +133,7 @@ impl<'r> PgRecordDecoder<'r> {
 
                 let element_type =
                     element_type_opt
-                        .ok_or_else(|| BoxDynError::from(format!("custom types in records are not fully supported yet: failed to retrieve type info for field {} with type oid {}", self.ind, element_type_oid.0)))?;
+                        .unwrap_or_else(|| PgTypeInfo::with_oid(element_type_oid));
 
                 self.ind += 1;