Bump toml from 0.5.6 to 0.5.7 (#33)

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](https://github.com/alexcrichton/toml-rs/compare/0.5.6...0.5.7)

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

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

Cargo.lock

@@ -1436,9 +1436,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.5.6"
+version = "0.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
+checksum = "75cf45bb0bef80604d001caaec0d09da99611b3c0fd39d3080468875cdb65645"
 dependencies = [
  "serde",
 ]

Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 sendgrid = { version = "0.13.0", features = ["rustls"] }
-toml = "0.5.6"
+toml = "0.5.7"
 serde_derive = "1.0.112"
 serde = "1.0.116"
 reqwest = { version = "0.10", default-features = false, features = ["json", "rustls-tls"] }