Bump hex from 0.4.0 to 0.4.1

Bumps [hex](https://github.com/KokaKiwi/rust-hex) from 0.4.0 to 0.4.1.
- [Release notes](https://github.com/KokaKiwi/rust-hex/releases)
- [Commits](https://github.com/KokaKiwi/rust-hex/compare/v0.4...v0.4.1)

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

Cargo.lock

@@ -542,9 +542,9 @@ dependencies = [
 
 [[package]]
 name = "hex"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "023b39be39e3a2da62a94feb433e91e8bcd37676fbc8bea371daf52b7a769a3e"
+checksum = "76cdda6bf525062a0c9e8f14ee2b37935c86b8efb6c8b69b3c83dfb518a914af"
 
 [[package]]
 name = "http"