Bump libbpf-sys from 0.5.0-2 to 0.6.0-1

Bumps [libbpf-sys](https://github.com/alexforster/libbpf-sys) from 0.5.0-2 to 0.6.0-1.
- [Release notes](https://github.com/alexforster/libbpf-sys/releases)
- [Commits](libbpf/libbpf-sys@0.5.0-2...0.6.0-1)

---
updated-dependencies:
- dependency-name: libbpf-sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

crates/libcgroups/Cargo.toml

@@ -21,7 +21,7 @@ dbus = { version = "0.9.5", optional = true }
 fixedbitset = "0.4.0"
 serde = { version = "1.0", features = ["derive"] }
 rbpf = {version = "0.1.0", optional = true }
-libbpf-sys = { version = "0.5.0-2", optional = true }
+libbpf-sys = { version = "0.6.0-1", optional = true }
 errno = { version = "0.2.8", optional = true }
 libc = { version = "0.2.108", optional = true }