Bump lscolors to 0.9.0

[meain]

Fixes #248

Just a note for future: I am not bumping crossterm as they have changed the deserialize code to not deserialize 0 into 256 color 0, but now you have to write ansi_0. We might have to create custom deserialize for that. We can maybe change back to ansi-term while we are at it as that has 16 color support which could be useful for #609.

ref: crossterm-rs/crossterm#604

Also bumping min rust version in CI to 1.56.0 as we need that for lscolors to use edition 2021.

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TODO

• Use cargo fmt
• Add necessary tests
• Add changelog entry

[codecov-commenter]

Codecov Report

Merging #623 (e494fbf) into master (4120f68) will decrease coverage by 0.17%.
The diff coverage is 26.66%.

@@            Coverage Diff             @@
##           master     #623      +/-   ##
==========================================
- Coverage   86.12%   85.95%   -0.18%     
==========================================
  Files          37       37              
  Lines        3907     3915       +8     
==========================================
  Hits         3365     3365              
- Misses        542      550       +8     

Impacted Files	Coverage Δ
src/color.rs	49.14% <0.00%> (-2.36%)	⬇️
src/meta/mod.rs	39.51% <0.00%> (ø)
src/meta/date.rs	98.55% <66.66%> (ø)
src/flags/date.rs	94.59% <100.00%> (ø)

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