Update some deps and bump MSRV to 1.51.0#1719

Closed

klensy wants to merge 3 commits intorust-lang:masterfrom klensy:deps-up

+44-60

Commits on Jan 2, 2022

replace chrono by time crate to mitigate RUSTSEC-2020-0159
klensy
committed

Commits on Jan 3, 2022