v1.73 is modifying panic and assert_* output

[nyurik]

Hi, not certain if it applies to your crate, but please be aware of https://twitter.com/m_ou_se/status/1691410284227747843

[tommilligan]

Hi, thanks for bringing this to my attention.

pretty_assertions doesn't parse or use rust's standard panic macros. However, it does try to be consistent with the output style, so it may be worth evaluating if a change in our output format is also reasonable.