Bump MSRV

[PierreZ]

Fix CI error:

  Downloaded linux-raw-sys v0.4.12
  Downloaded libc v0.2.151
error: package `home v0.5.9` cannot be built because it requires rustc 1.70.0 or newer, while the currently active rustc version is 1.65.0
Either upgrade to rustc 1.70.0 or newer, or use
cargo update -p home@0.5.9 --precise ver
where `ver` is the latest version of `home` supporting rustc 1.65.0

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (fb3dcba) 82.30% compared to head (83b557e) 81.93%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #112      +/-   ##
==========================================
- Coverage   82.30%   81.93%   -0.38%     
==========================================
  Files          23       23              
  Lines        4837     4837              
==========================================
- Hits         3981     3963      -18     
- Misses        856      874      +18     

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