build(deps): update iced requirement from =0.10.0 to =0.12.1

Updates the requirements on [iced](https://github.com/iced-rs/iced) to permit the latest version.
- [Release notes](https://github.com/iced-rs/iced/releases)
- [Changelog](https://github.com/iced-rs/iced/blob/master/CHANGELOG.md)
- [Commits](iced-rs/iced@0.10.0...0.12.1)

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

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

Cargo.toml

@@ -107,7 +107,7 @@ tracing-subscriber.workspace = true
 RustQuant.workspace = true
 statrs.workspace = true
 
-iced = { version = "=0.10.0", features = [
+iced = { version = "=0.12.1", features = [
     "system",
     "tokio",
     "lazy",