chore(deps): update nginxinc/nginx-unprivileged docker tag to v1.27.3 (…

…#2371)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[nginxinc/nginx-unprivileged](https://redirect.github.com/nginxinc/docker-nginx-unprivileged)
| minor | `1.26.2` -> `1.27.3` |

---

### Release Notes

<details>
<summary>nginxinc/docker-nginx-unprivileged
(nginxinc/nginx-unprivileged)</summary>

###
[`v1.27.3`](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/releases/tag/1.27.3)

[Compare
Source](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/compare/1.27.2...1.27.3)

1.27.3 (mainline)

###
[`v1.27.2`](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/releases/tag/1.27.2)

[Compare
Source](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/compare/1.27.1...1.27.2)

1.27.2 (mainline)

###
[`v1.27.1`](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/releases/tag/1.27.1)

[Compare
Source](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/compare/1.27.0...1.27.1)

1.27.1 (mainline)

###
[`v1.27.0`](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/releases/tag/1.27.0)

[Compare
Source](https://redirect.github.com/nginxinc/docker-nginx-unprivileged/compare/1.26.2...1.27.0)

1.27.0 (mainline)

</details>

---

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helm/values.yaml

@@ -412,7 +412,7 @@ nginx:
   image:
     repository: nginxinc/nginx-unprivileged
     pullPolicy: IfNotPresent
-    tag: 1.26.2@sha256:4dc24adb9f46f6c5bbdea47e03a22343d515687c1c9077cf3df36dd9c0a97441
+    tag: 1.27.3@sha256:d0ebbd60453d566b6c497adb4c0c220ba0aa1bc0d654a6975aa65e16ae11d8fb
   service:
     type: ClusterIP
     port: 80