fix(deps): update rust crate libc to v0.2.167

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
libc	dependencies	patch	0.2.166 -> 0.2.167

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Release Notes

rust-lang/libc (libc)

v0.2.167

Compare Source

Added

• Solarish: add st_fstype to stat #​4145
• Trusty: Add intptr_t and uintptr_t (#​4161)

Fixed

• Fix the build with rustc-dep-of-std #​4158
• Wasi: Add back unsafe block for clockid_t static variables (#​4157)

Cleanup

• Create an internal prelude #​4161
• Fix unused_qualifications#​4132

Other

• CI: Check various FreeBSD versions (#​4159)
• CI: add a timeout for all jobs #​4164
• CI: verify MSRV for wasm32-wasi #​4157
• Migrate to the 2021 edition #​4132

Removed

• Remove one unused import after the edition 2021 bump

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