fix(helm): update gateway ( 1.23.1 → 1.23.2 ) (#5434)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [gateway](https://redirect.github.com/istio/istio) | patch | `1.23.1`
-> `1.23.2` |

---

### Release Notes

<details>
<summary>istio/istio (gateway)</summary>

###
[`v1.23.2`](https://redirect.github.com/istio/istio/releases/tag/1.23.2):
Istio 1.23.2

[Compare
Source](https://redirect.github.com/istio/istio/compare/1.23.1...1.23.2)

[Artifacts](http://gcsweb.istio.io/gcs/istio-release/releases/1.23.2/)
[Release
Notes](https://istio.io/news/releases/1.23.x/announcing-1.23.2/)

</details>

---

### 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 PR becomes conflicted, or you tick the
rebase/retry checkbox.

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

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC44OS4zIiwidXBkYXRlZEluVmVyIjoiMzguODkuMyIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsicmVub3ZhdGUvaGVsbSIsInR5cGUvcGF0Y2giXX0=-->

Co-authored-by: lumiere-bot[bot] <98047013+lumiere-bot[bot]@users.noreply.github.com>

kubernetes/sol/apps/istio-system/gateway/app/helmrelease.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: gateway
-      version: 1.23.1
+      version: 1.23.2
       sourceRef:
         kind: HelmRepository
         name: istio