Update font-kit requirement from 0.4.0 to 0.5.0

Updates the requirements on [font-kit](https://github.com/servo/font-kit) to permit the latest version.
- [Release notes](https://github.com/servo/font-kit/releases)
- [Commits](https://github.com/servo/font-kit/commits)

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

Author: dependabot-preview[bot]

Cargo.toml

@@ -25,7 +25,7 @@ features = ["std"]
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 rusttype = {version = "0.8.1", optional = true}
 lazy_static = {version = "^1.2", optional = true }
-font-kit = {version = "0.4.0", optional = true }
+font-kit = {version = "0.5.0", optional = true }
 piston_window = {version = "0.105.0", optional = true}
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies.image]