build(deps): bump libc from 0.2.79 to 0.2.80 in /rust

Bumps [libc](https://github.com/rust-lang/libc) from 0.2.79 to 0.2.80.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.79...0.2.80)

Signed-off-by: dependabot[bot] <support@github.com>

rust/Cargo.lock

@@ -512,9 +512,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.79"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2448f6066e80e3bfc792e9c98bf705b4b0fc6e8ef5b43e5889aff0eaa9c58743"
+checksum = "4d58d1b70b004888f764dfbf6a26a3b0342a1632d33968e4a179d8011c760614"
 
 [[package]]
 name = "libdnf-sys"

rust/Cargo.toml

@@ -10,7 +10,7 @@ serde = "1.0.117"
 serde_derive = "1.0.117"
 serde_json = "1.0.59"
 serde_yaml = "0.8.13"
-libc = "0.2.79"
+libc = "0.2.80"
 nix = "0.19.0"
 glib-sys = "0.10.1"
 glib = "0.10.3"