chore(helm): update image docker.io/machines/filestash digest to ebcd431 (#31603)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/machines/filestash | digest | `fb32598` -> `ebcd431` |

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charts/stable/filestash/Chart.yaml

@@ -36,4 +36,4 @@ sources:
   - https://hub.docker.com/r/machines/filestash
   - https://www.filestash.app/
 type: application
-version: 8.5.5
+version: 8.5.6

charts/stable/filestash/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: docker.io/machines/filestash
-  tag: latest@sha256:fb3259855ba9d27ccc80a71c2f1f6889da18dd8dc390c3063240909f05fc35e1
+  tag: latest@sha256:ebcd4316b8d42f681adede85ed5ec839f080d770fb696786e93ea177b47a3b42
   pullPolicy: IfNotPresent
 
 securityContext: