Update Ironbank

This MR contains the following updates:

Package	Update	Change
ironbank/gitlab/gitlab/gitlab-webservice	minor	16.3.4 -> 16.4.0
registry1.dso.mil/ironbank/gitlab/gitlab/certificates	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/gitaly	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-container-registry	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-exporter	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-mailroom	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-pages	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-shell	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-sidekiq	minor	16.3.4 -> 16.4.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-toolbox	minor	16.3.4 -> 16.4.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-webservice	minor	16.3.4 -> 16.4.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-workhorse	minor	16.3.4 -> 16.4.1
registry1.dso.mil/ironbank/gitlab/gitlab/kubectl	minor	16.3.4 -> 16.4.1

---

Configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Renovate will not automatically rebase this PR, because other commits have been found.

👻 Immortal: This MR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this MR, click this checkbox.

---

This MR has been generated by Renovate Bot.