cargo: bump iroh from 0.4.0 to 0.4.1

Bumps [iroh](https://github.com/n0-computer/iroh) from 0.4.0 to 0.4.1.
- [Release notes](https://github.com/n0-computer/iroh/releases)
- [Changelog](https://github.com/n0-computer/iroh/blob/main/CHANGELOG.md)
- [Commits](https://github.com/n0-computer/iroh/compare/v0.4.0...v0.4.1)

---
updated-dependencies:
- dependency-name: iroh
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.toml

@@ -52,7 +52,7 @@ futures-lite = "1.12.0"
 hex = "0.4.0"
 humansize = "2"
 image = { version = "0.24.6", default-features=false, features = ["gif", "jpeg", "ico", "png", "pnm", "webp", "bmp"] }
-iroh = { version = "0.4.0", default-features = false }
+iroh = { version = "0.4.1", default-features = false }
 kamadak-exif = "0.5"
 lettre_email = { git = "https://github.com/deltachat/lettre", branch = "master" }
 libc = "0.2"