Update font-kit requirement from 0.13.0 to 0.14.1

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](servo/font-kit@v0.13.0...v0.14.1)

---
updated-dependencies:
- dependency-name: font-kit
  dependency-type: direct:production
...

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

plotters/Cargo.toml

@@ -35,7 +35,7 @@ path = "../plotters-svg"
 ttf-parser = { version = "0.20.0", optional = true }
 lazy_static = { version = "1.4.0", optional = true }
 pathfinder_geometry = { version = "0.5.1", optional = true }
-font-kit = { version = "0.13.0", optional = true }
+font-kit = { version = "0.14.1", optional = true }
 ab_glyph = { version = "0.2.12", optional = true }
 once_cell = { version = "1.8.0", optional = true }