Update Rust crate libc to 0.2.139

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
libc	dependencies	patch	0.2.138 -> 0.2.139

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Release Notes

rust-lang/libc

### [`v0.2.139`](https://togithub.com/rust-lang/libc/releases/tag/0.2.139) [Compare Source](https://togithub.com/rust-lang/libc/compare/0.2.138...0.2.139) ##### What's Changed - Update FreeBSD 12 CI environment to 12.4 by [@​asomers](https://togithub.com/asomers) in [https://github.com/rust-lang/libc/pull/3028](https://togithub.com/rust-lang/libc/pull/3028) - Try readding all inotify flags by [@​carbotaniuman](https://togithub.com/carbotaniuman) in [https://github.com/rust-lang/libc/pull/3030](https://togithub.com/rust-lang/libc/pull/3030) - linux: Add AT_SYSINFO_EHDR constant by [@​Phantomical](https://togithub.com/Phantomical) in [https://github.com/rust-lang/libc/pull/3027](https://togithub.com/rust-lang/libc/pull/3027) - Add missing string-to-number functions from ISO C by [@​LegionMammal978](https://togithub.com/LegionMammal978) in [https://github.com/rust-lang/libc/pull/3036](https://togithub.com/rust-lang/libc/pull/3036) - Add support for QNX/Neutrino 7.1 by [@​gh-tr](https://togithub.com/gh-tr) in [https://github.com/rust-lang/libc/pull/3038](https://togithub.com/rust-lang/libc/pull/3038) - Add misc constants and functions for android by [@​fkm3](https://togithub.com/fkm3) in [https://github.com/rust-lang/libc/pull/2758](https://togithub.com/rust-lang/libc/pull/2758) - adding KERNEL_VERSION macro for linux. by [@​devnexen](https://togithub.com/devnexen) in [https://github.com/rust-lang/libc/pull/3041](https://togithub.com/rust-lang/libc/pull/3041) - Prepare 0.2.139 release by [@​flba-eb](https://togithub.com/flba-eb) in [https://github.com/rust-lang/libc/pull/3042](https://togithub.com/rust-lang/libc/pull/3042) ##### New Contributors - [@​Phantomical](https://togithub.com/Phantomical) made their first contribution in [https://github.com/rust-lang/libc/pull/3027](https://togithub.com/rust-lang/libc/pull/3027) - [@​LegionMammal978](https://togithub.com/LegionMammal978) made their first contribution in [https://github.com/rust-lang/libc/pull/3036](https://togithub.com/rust-lang/libc/pull/3036) - [@​gh-tr](https://togithub.com/gh-tr) made their first contribution in [https://github.com/rust-lang/libc/pull/3038](https://togithub.com/rust-lang/libc/pull/3038) - [@​fkm3](https://togithub.com/fkm3) made their first contribution in [https://github.com/rust-lang/libc/pull/2758](https://togithub.com/rust-lang/libc/pull/2758) **Full Changelog**: https://github.com/rust-lang/libc/compare/0.2.138...0.2.139

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