chore(deps): update container image ghcr.io/linuxserver/grav to 1.7.46@254ad08 by renovate (#26381)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[ghcr.io/linuxserver/grav](https://redirect.github.com/linuxserver/docker-grav/packages)
([source](https://redirect.github.com/linuxserver/docker-grav)) | digest
| `c7a2529` -> `254ad08` |

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charts/stable/grav/Chart.yaml

@@ -36,4 +36,4 @@ sources:
   - https://github.com/linuxserver/docker-grav
   - https://github.com/truecharts/charts/tree/master/charts/stable/grav
 type: application
-version: 13.1.14
+version: 13.1.15

charts/stable/grav/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/grav
   pullPolicy: IfNotPresent
-  tag: 1.7.46@sha256:c7a25295535b7c4736ff8ed5d34da484e5cffa57683cc7260609661099119890
+  tag: 1.7.46@sha256:254ad083d5f601fb3b526db61e4bb2aec26963b081e6fcb1a0d8f03db9360248
 service:
   main:
     ports: