Bump dbus from 0.9.5 to 0.9.6

Bumps [dbus](https://github.com/diwic/dbus-rs) from 0.9.5 to 0.9.6.
- [Release notes](https://github.com/diwic/dbus-rs/releases)
- [Commits](https://github.com/diwic/dbus-rs/compare/dbus-v0.9.5...dbus-v0.9.6)

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

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

Cargo.toml

@@ -18,7 +18,7 @@ chrono = "0.4"
 clap = "3.2.6"
 clipboard = {version = "0.5", optional = true}
 crossbeam-channel = "0.5"
-dbus = {version = "0.9.5", optional = true}
+dbus = {version = "0.9.6", optional = true}
 dbus-tree = {version = "0.9.2", optional = true}
 fern = "0.6"
 futures = "0.3"