deps: bump toml from 0.4 to 0.5

Author: matthiaskrgr

clippy_lints/Cargo.toml

@@ -26,7 +26,7 @@ regex-syntax = "0.6"
 semver = "0.9.0"
 serde = "1.0"
 serde_derive = "1.0"
-toml = "0.4"
+toml = "0.5"
 unicode-normalization = "0.1"
 pulldown-cmark = "0.5.0"
 url = "1.7.0"