chore(deps): update helm release loki to v3.4.3

This MR contains the following updates:

Package	Update	Change
loki (source)	patch	3.4.2 -> 3.4.3

---

Release Notes

grafana/helm-charts

v3.4.3

Helm chart for Grafana Loki in simple, scalable mode

Source commit: https://github.com/grafana/loki/commit/217a914f98188cbbd31e51bd9b8e0da0d1366e17

Tag on source: https://github.com/grafana/loki/releases/tag/helm-loki-3.4.3

---

Configuration

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

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

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

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

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by Renovate Bot. The local configuration can be found in the SI Renovate Bot repository.