Adapt chrono settings to remove old time crate

[cakebaker]

This PR adapts the chrono settings in Cargo.toml so that the time crate is no longer needed.

Closes #13

[codecov]

Codecov Report

Merging #14 (5278394) into main (e5d7fbc) will increase coverage by 18.84%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main      #14       +/-   ##
===========================================
+ Coverage   41.87%   60.72%   +18.84%     
===========================================
  Files           2        2               
  Lines         511      359      -152     
  Branches      100       81       -19     
===========================================
+ Hits          214      218        +4     
+ Misses        259      103      -156     
  Partials       38       38               

Flag	Coverage Δ
macos_latest	60.72% <ø> (+18.84%)	⬆️
ubuntu_latest	60.72% <ø> (+18.84%)	⬆️
windows_latest	63.74% <ø> (+20.85%)	⬆️

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see 1 file with indirect coverage changes

[sylvestre]

TIL! thanks