Update procfs requirement from 0.15.0 to 0.16.0 (#108)

Updates the requirements on [procfs](https://github.com/eminence/procfs) to permit the latest version.
- [Release notes](https://github.com/eminence/procfs/releases)
- [Commits](eminence/procfs@v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: procfs
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.toml

@@ -37,5 +37,5 @@ bindgen = { version = "0.68.1", default-features = false, features = ["runtime"]
 # supports it. It's quite probably that neither of those two things ever happen.
 # But making this assumption for now so that everything compiles at least for redox
 [target.'cfg(any(target_os = "linux", target_os = "redox", target_os = "android"))'.dev-dependencies]
-procfs = "0.15.0"
+procfs = "0.16.0"
 tempfile = "3.3.0"