chore(helm): update image ghcr.io/linuxserver/grav digest to 8ecdfae (#31555)

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
| `d849dce` -> `8ecdfae` |

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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: 13.5.2
+version: 13.5.3

charts/stable/grav/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/grav
   pullPolicy: IfNotPresent
-  tag: 1.7.48@sha256:d849dcefe0d657cbcdaa7d6bfc0a23d8eaad59662b62c47be4c9880d64c9de66
+  tag: 1.7.48@sha256:8ecdfaecd761310aa39f38399d74fa575cd4772dc785642ec8704d5234aa2110
 service:
   main:
     ports: