Bump libc from 0.2.60 to 0.2.61 (#5491)

Bumps [libc](https://github.com/rust-lang/libc) from 0.2.60 to 0.2.61.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.60...0.2.61)

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

programs/bpf_loader_api/Cargo.toml

@@ -11,7 +11,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.1.4"
 byteorder = "1.3.2"
-libc = "0.2.58"
+libc = "0.2.61"
 log = "0.4.8"
 serde = "1.0.98"
 solana-logger = { path = "../../logger", version = "0.18.0-pre1" }