Implement `Ord` and `PartialOrd` for `Timestamp` (#1882)
Implement `Ord` and `PartialOrd` for `Timestamp` (#1882)

Closes #1881

Co-authored-by: nickelc <1a83c16823266e90fd0dfaaadd88106e3568ce9c@gmail.com>
acdenisSK/serenity,Flat/serenity