chore(deps): update ghcr.io/siderolabs/talosctl docker tag to v1.7.3

[bot-ross[bot]]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/siderolabs/talosctl	stage	patch	v1.7.2 -> v1.7.3

---

Release Notes

siderolabs/talos (ghcr.io/siderolabs/talosctl)

### [`v1.7.3`](https://togithub.com/siderolabs/talos/compare/v1.7.2...v1.7.3) [Compare Source](https://togithub.com/siderolabs/talos/compare/v1.7.2...v1.7.3)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot.