chore(deps): update helm release loki to v6.55.0 (#4622)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [loki](https://grafana.github.io/helm-charts) ([source](https://github.com/grafana/helm-charts)) | minor | `6.53.0` → `6.55.0` |

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### Configuration

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

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

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

---

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---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My41OS4yIiwidXBkYXRlZEluVmVyIjoiNDMuNTkuMiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiY2hhcnQiXX0=-->

Reviewed-on: #4622
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/loki/Chart.lock

@@ -1,9 +1,9 @@
 dependencies:
 - name: loki
   repository: https://grafana.github.io/helm-charts
-  version: 6.53.0
+  version: 6.55.0
 - name: alloy
   repository: https://grafana.github.io/helm-charts
   version: 1.6.2
-digest: sha256:88b8ace6bcbcbff4b04727499705fbe94de7fe4b8f0b8aa254a1e7d1d2c65fac
-generated: "2026-03-10T18:56:19.38475079Z"
+digest: sha256:463184dc134143723f8567a1ebd228353cf0253a139f0a4e76637ec65aa4aaf1
+generated: "2026-03-14T18:16:47.779817047Z"