Update shlex dependency to version 2

[musicinmybrain]

See https://github.com/comex/rust-shlex/blob/653936e120cdd0a8d1b4f0837e2cce0f347da4c0/CHANGELOG.md. There is only one file with calls into shlex, and it doesn’t use any of the APIs that were removed in v2:

sccache/src/compiler/nvcc.rs

Line 113 in c710468

arguments = shlex::split(flags)

sccache/src/compiler/nvcc.rs

Line 127 in c710468

shlex::split(flags)

sccache/src/compiler/nvcc.rs

Line 1125 in c710468

let args = match shlex::split(&line) {

This has the pleasant side effect of deduplicating shlex in Cargo.lock, since cc already updated its dependency to v2.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.18%. Comparing base (c710468) to head (9ba2d59).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2836      +/-   ##
==========================================
- Coverage   73.82%   70.18%   -3.64%     
==========================================
  Files          72       72              
  Lines       38087    38054      -33     
==========================================
- Hits        28117    26709    -1408     
- Misses       9970    11345    +1375     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.