chore(helm): update image docker.io/jgraph/drawio 28.2.7 → 28.2.8 (#41013)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [docker.io/jgraph/drawio](https://www.drawio.com)
([source](https://redirect.github.com/jgraph/docker-drawio)) | patch |
`a9680d6` -> `b8b579a` |

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### Release Notes

<details>
<summary>jgraph/docker-drawio (docker.io/jgraph/drawio)</summary>

###
[`v28.2.8`](https://redirect.github.com/jgraph/docker-drawio/compare/v28.2.7...v28.2.8)

[Compare
Source](https://redirect.github.com/jgraph/docker-drawio/compare/v28.2.7...v28.2.8)

</details>

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charts/stable/drawio/Chart.yaml

@@ -11,7 +11,7 @@ annotations:
   truecharts.org/min_kubernetes_version: 1.24.0
   truecharts.org/train: stable
 apiVersion: v2
-appVersion: 28.2.7
+appVersion: 28.2.8
 dependencies:
   - name: common
     version: 28.26.1
@@ -38,5 +38,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/drawio
   - https://hub.docker.com/r/jgraph/drawio
 type: application
-version: 17.12.3
+version: 17.12.4
 

charts/stable/drawio/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: docker.io/jgraph/drawio
-  tag: 28.2.7@sha256:a9680d6c57d8f9992d34992fe4f647a68b466b2a9c638e9749861bd8b71fdf39
+  tag: 28.2.8@sha256:b8b579ac50c7aec2250050e66e6f7b376be608f7694b22068ab0b466906f90ea
   pullPolicy: IfNotPresent
 securityContext:
   container: