Bump toml from 0.5.7 to 0.5.8

Bumps [toml](https://github.com/alexcrichton/toml-rs) from 0.5.7 to 0.5.8.
- [Release notes](https://github.com/alexcrichton/toml-rs/releases)
- [Commits](toml-rs/toml-rs@0.5.7...0.5.8)

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

Author: dependabot[bot]

Cargo.lock

@@ -44,7 +44,7 @@ serde_rusqlite = "0.14.0"
 mime = "0.3.16"
 humansize = "1.1.0"
 unicode-segmentation = "1.7.1"
-toml = "0.5.7"
+toml = "0.5.8"
 directories = "3.0.1"
 log = "0.4.11"
 stderrlog = "0.5.0"