chore(deps): update opi sztp dockers

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
ghcr.io/opiproject/opi-sztp-client	digest	c9321d6 -> 53aad12
ghcr.io/opiproject/opi-sztp-server	digest	16a45c8 -> b9191fc

---

Configuration

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

🚦 Automerge: Enabled.

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

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

---

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

---

This PR has been generated by Mend Renovate. View repository job log here.