build(deps): bump config from 0.13.3 to 0.13.4

Bumps [config](https://github.com/mehcode/config-rs) from 0.13.3 to 0.13.4.
- [Changelog](https://github.com/mehcode/config-rs/blob/v0.13.4/CHANGELOG.md)
- [Commits](https://github.com/mehcode/config-rs/compare/0.13.3...v0.13.4)

---
updated-dependencies:
- dependency-name: config
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -701,9 +701,9 @@ dependencies = [
 
 [[package]]
 name = "config"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d379af7f68bfc21714c6c7dea883544201741d2ce8274bb12fa54f89507f52a7"
+checksum = "23738e11972c7643e4ec947840fc463b6a571afcd3e735bdfce7d03c7a784aca"
 dependencies = [
  "async-trait",
  "lazy_static",