chore(deps): update tokio-tun requirement from 0.6 to 0.7

Updates the requirements on [tokio-tun](https://github.com/yaa110/tokio-tun) to permit the latest version.
- [Release notes](https://github.com/yaa110/tokio-tun/releases)
- [Commits](https://github.com/yaa110/tokio-tun/compare/0.6.0...0.7.0)

---
updated-dependencies:
- dependency-name: tokio-tun
  dependency-type: direct:production
...

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

fake-tcp/Cargo.toml

@@ -21,5 +21,5 @@ tokio = { version = "1.14", features = ["full"] }
 rand = { version = "0.8", features = ["small_rng"] }
 log = "0.4"
 internet-checksum = "0.2"
-tokio-tun = "0.6"
+tokio-tun = "0.7"
 flume = "0.10"

phantun/Cargo.toml

@@ -18,7 +18,7 @@ tokio = { version = "1.14", features = ["full"] }
 tokio-util = "0.7"
 log = "0.4"
 pretty_env_logger = "0.4"
-tokio-tun = "0.6"
+tokio-tun = "0.7"
 num_cpus = "1.13"
 neli = "0.6"
 nix = "0.25"