chore(deps): update container image ghcr.io/drakkan/sftpgo to v2.6.1@166cef2 by renovate (#23555)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [ghcr.io/drakkan/sftpgo](https://togithub.com/drakkan/sftpgo) | patch
| `v2.6.0-plugins` -> `v2.6.1-plugins` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>drakkan/sftpgo (ghcr.io/drakkan/sftpgo)</summary>

### [`v2.6.1`](https://togithub.com/drakkan/sftpgo/releases/tag/v2.6.1)

[Compare
Source](https://togithub.com/drakkan/sftpgo/compare/v2.6.0...v2.6.1)

#### New features

-   Defender: allow to impose a delay between login attempts.
-   SSH: allow to configure minimum key size for DHGEX.
-   Transfer logs: add error field.
-   Logs: redact plugin arguments, they may contain sensitive data.
- Web UIs: added `robots` meta tag to prevent pages from appearing in
search results.

#### Bug fixes

- Web UIs reset password: add proper access control. Fixes
CVE-2024-37897.
-   Web UIs: fixed several minor CSS and rendering issues.
- EventManager: fix `ObjectDataString` placeholder for provider events.
- Windows installer: set the minimum version to Windows 10 or Windows
Server 2016. See Go [minimum
requirements](https://go.dev/wiki/MinimumRequirements). SFTPGo 2.6.x is
compiled using Go 1.22.x.

</details>

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---

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

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy40MTMuMSIsInVwZGF0ZWRJblZlciI6IjM3LjQxMy4xIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInVwZGF0ZS9kb2NrZXIvZ2VuZXJhbC9ub24tbWFqb3IiXX0=-->

charts/stable/sftpgo/Chart.yaml

@@ -6,7 +6,7 @@ annotations:
   truecharts.org/min_helm_version: "3.11"
   truecharts.org/train: stable
 apiVersion: v2
-appVersion: 2.6.0
+appVersion: 2.6.1
 dependencies:
   - name: common
     version: 24.1.1
@@ -33,4 +33,4 @@ sources:
   - https://github.com/drakkan/sftpgo
   - https://github.com/truecharts/charts/tree/master/charts/stable/sftpgo
 type: application
-version: 8.1.1
+version: 8.1.2

charts/stable/sftpgo/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: ghcr.io/drakkan/sftpgo
-  tag: v2.6.0-plugins@sha256:3b90adefa53611427cfeda58bf9f251b01290e867bed9b1850fda3e12b18a107
+  tag: v2.6.1-plugins@sha256:166cef215cf0d730147505e00efbd2b7bf02a2a47717f105d65b2eda629d409c
 securityContext:
   container:
     runAsNonRoot: false