Bump indexmap to 2.0 and update MSRV to 1.64.0#459

Merged

juntyr merged 1 commit intoron-rs:masterfrom juntyr:indexmap-2.0

Jul 6, 2023

+6-5

Commits on Jul 6, 2023

Bump indexmap to 2.0 and update MSRV to 1.64.0
juntyr
committed