Bump webbrowser from 0.5.5 to 0.6.0

Bumps [webbrowser](https://github.com/amodm/webbrowser-rs) from 0.5.5 to 0.6.0.
- [Release notes](https://github.com/amodm/webbrowser-rs/releases)
- [Changelog](https://github.com/amodm/webbrowser-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/amodm/webbrowser-rs/compare/v0.5.5...v0.6.0)

---
updated-dependencies:
- dependency-name: webbrowser
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Cargo.toml

@@ -35,7 +35,7 @@ unicode-width = "0.1.9"
 dbus = { version = "0.9.5", optional = true }
 dbus-tree = { version = "0.9.2", optional = true }
 rand = "0.8"
-webbrowser = "0.5"
+webbrowser = "0.6"
 clipboard = { version = "0.5", optional = true }
 wl-clipboard-rs = { version = "0.4", optional = true }
 url = "2.2"