build(deps): update nix requirement from 0.26 to 0.27

Updates the requirements on [nix](https://github.com/nix-rust/nix) to permit the latest version.
- [Changelog](https://github.com/nix-rust/nix/blob/master/CHANGELOG.md)
- [Commits](nix-rust/nix@v0.26.0...v0.27.1)

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

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

crates/runc-shim/Cargo.toml

@@ -25,7 +25,7 @@ doc = false
 
 [dependencies]
 log = "0.4"
-nix = "0.26"
+nix = "0.27"
 libc = "0.2.95"
 time = { version = "0.3.7", features = ["serde", "std"] }
 serde = { version = "1.0.133", features = ["derive"] }

crates/runc/Cargo.toml

@@ -17,7 +17,7 @@ async = ["tokio", "async-trait", "futures", "tokio-pipe"]
 [dependencies]
 libc = "0.2.112"
 log = "0.4.14"
-nix = "0.26"
+nix = "0.27"
 oci-spec = "0.6.0"
 path-absolutize = "3.0.11"
 rand = "0.8.4"

crates/shim/Cargo.toml

@@ -26,7 +26,7 @@ go-flag = "0.1.0"
 thiserror = "1.0"
 log = { version = "0.4", features = ["std"] }
 libc = "0.2.95"
-nix = "0.26"
+nix = "0.27"
 lazy_static = "1.4.0"
 time = { version = "0.3.7", features = ["serde", "std"] }
 serde_json = "1.0.78"