chore(container): update oci-image shlinkio/shlink to v4 by renovate (#27869)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [shlinkio/shlink](https://redirect.github.com/shlinkio/shlink) | patch
| `71ef6e0` -> `ab6aafe` |

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### Release Notes

<details>
<summary>shlinkio/shlink (shlinkio/shlink)</summary>

###
[`v4.2.3`](https://redirect.github.com/shlinkio/shlink/blob/HEAD/CHANGELOG.md#423---2024-10-17)

[Compare
Source](https://redirect.github.com/shlinkio/shlink/compare/v4.2.2...v4.2.3)

##### Added

-   *Nothing*

##### Changed

-   *Nothing*

##### Deprecated

-   *Nothing*

##### Removed

-   *Nothing*

##### Fixed

-
[#&#8203;2225](https://redirect.github.com/shlinkio/shlink/issues/2225)
Fix regression introduced in v4.2.2, making config options with `null`
value to be promoted as env vars with value `''`, instead of being
skipped.

</details>

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charts/stable/shlink/Chart.yaml

@@ -6,7 +6,7 @@ annotations:
   truecharts.org/min_helm_version: "3.11"
   truecharts.org/train: stable
 apiVersion: v2
-appVersion: 4.2.2
+appVersion: 4.2.3
 dependencies:
   - name: common
     version: 25.0.0
@@ -40,4 +40,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/shlink
   - https://hub.docker.com/r/shlinkio/shlink
 type: application
-version: 16.6.2
+version: 16.6.3

charts/stable/shlink/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: shlinkio/shlink
   pullPolicy: IfNotPresent
-  tag: 4.2.2@sha256:71ef6e0bebdca342936f72120243e63a3cbaaea6ea78f21704b06d0bcd5b80fc
+  tag: 4.2.3@sha256:ab6aafe60696f29e07b585f59682938f988c1998b16c9116cbb26fc9f9d7d593
 service:
   main:
     ports: