build(deps): bump github.com/godbus/dbus/v5 from 5.0.4 to 5.1.0

Bumps [github.com/godbus/dbus/v5](https://github.com/godbus/dbus) from 5.0.4 to 5.1.0.
- [Release notes](https://github.com/godbus/dbus/releases)
- [Commits](godbus/dbus@v5.0.4...v5.1.0)

---
updated-dependencies:
- dependency-name: github.com/godbus/dbus/v5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -2,4 +2,4 @@ module github.com/coreos/go-systemd/v22
 
 go 1.12
 
-require github.com/godbus/dbus/v5 v5.0.4
+require github.com/godbus/dbus/v5 v5.1.0

go.sum

@@ -1,2 +1,2 @@
-github.com/godbus/dbus/v5 v5.0.4 h1:9349emZab16e7zQvpmsbtjc18ykshndd8y2PG3sgJbA=
-github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
+github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=