Update lasso requirement from 0.3 to 0.4

Updates the requirements on [lasso](https://github.com/Kixiron/lasso) to permit the latest version.
- [Release notes](https://github.com/Kixiron/lasso/releases)
- [Changelog](https://github.com/Kixiron/lasso/blob/master/Changelog.md)
- [Commits](https://github.com/Kixiron/lasso/compare/v0.3.0...v0.4.1)

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

lib/Cargo.toml

@@ -39,7 +39,7 @@ hex = "0.4"
 nom = "6"
 peg = "0.6"
 siphasher = "0.3"
-lasso = {version="0.3", features=["multi-threaded"]}
+lasso = {version="0.4", features=["multi-threaded"]}
 sophia_api = { version = "0.6.2", optional = true }
 http = "0.2"
 httparse = { version = "1", optional = true }