Bump sysctl from 0.6.0 to 0.7.1

Bumps [sysctl](https://github.com/johalun/sysctl-rs) from 0.6.0 to 0.7.1.
- [Release notes](https://github.com/johalun/sysctl-rs/releases)
- [Changelog](https://github.com/johalun/sysctl-rs/blob/master/CHANGELOG.md)
- [Commits](johalun/sysctl-rs@v0.6.0...v0.7.1)

---
updated-dependencies:
- dependency-name: sysctl
  dependency-version: 0.7.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -65,7 +65,7 @@ crossbeam-channel = "0.5.15"
 mach2 = "0.5"
 lazy_static = "1.5.0"
 flate2 = "1.0"
-sysctl = "0.6.0"
+sysctl = "0.7.1"
 plist = "1.7.0"
 
 [target.'cfg(any(target_os = "android", target_os = "linux"))'.dependencies]