build(deps): bump users from 0.10.0 to 0.11.0

Bumps [users](https://github.com/ogham/rust-users) from 0.10.0 to 0.11.0.
- [Release notes](https://github.com/ogham/rust-users/releases)
- [Commits](ogham/rust-users@v0.10.0...v0.11.0)

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

Author: dependabot[bot]

Cargo.lock

@@ -15,7 +15,7 @@ fs2 = "0.4"
 # Public dependencies, exposed through library API.
 error-chain = { version = "0.12", default-features = false }
 openssh-keys = "0.4"
-users = "0.10"
+users = "0.11"
 
 [[bin]]
 name = "update-ssh-keys"