Update rfd requirement from 0.14.1 to 0.15.0

Updates the requirements on [rfd](https://github.com/PolyMeilex/rfd) to permit the latest version.
- [Release notes](https://github.com/PolyMeilex/rfd/releases)
- [Changelog](https://github.com/PolyMeilex/rfd/blob/master/CHANGELOG.md)
- [Commits](PolyMeilex/rfd@0.14.1...0.15.0)

---
updated-dependencies:
- dependency-name: rfd
  dependency-type: direct:production
...

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

anise-gui/Cargo.toml

@@ -21,7 +21,7 @@ egui_extras = { version = "0.28", features = ["datepicker", "http", "image"] }
 catppuccin-egui = { version = "5.1", default-features = false, features = [
     "egui28",
 ] }
-rfd = { version = "0.14.1" }
+rfd = { version = "0.15.0" }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 wasm-bindgen-futures = "0.4"