[Chronik] Fix build: Add Clone derive to DataError

Summary:
Previously I (@tobias_ruck) accidentally landed empp::ParseError with #[derive(Clone)], which breaks the build.

Adding the derive to DataError fixes it.

Test Plan: ninja check-crates

Reviewers: Fabien, PiRK, #bitcoin_abc

Reviewed By: Fabien, #bitcoin_abc

Differential Revision: https://reviews.bitcoinabc.org/D13959