Bump toml from 0.5.6 to 0.5.7 (#270)

Bumps [toml](https://github.com/alexcrichton/toml-rs) from 0.5.6 to 0.5.7.
- [Release notes](https://github.com/alexcrichton/toml-rs/releases)
- [Commits](toml-rs/toml-rs@0.5.6...0.5.7)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

Cargo.lock

@@ -30,7 +30,7 @@ gcd = "2.0.1"
 rand = "0.7.3"
 colorful = "0.2.1"
 ansi_term = "0.12.1"
-toml = "0.5.6"
+toml = "0.5.7"
 serde = "1.0.116"
 serde_derive = "1.0.116"
 cidr-utils = "0.5.0"