chore(helm): update image docker.io/machines/filestash digest to a926a1f (#31503)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/machines/filestash | digest | `48262ba` -> `a926a1f` |

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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: 8.5.3
+version: 8.5.4

charts/stable/filestash/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: docker.io/machines/filestash
-  tag: latest@sha256:48262ba230573e5ffcafd78f668d97df9e136ff15eeb4ecc3f7ceb9b9347fe74
+  tag: latest@sha256:a926a1f21266a1b6cd78adc97087c6a9dd489508c140ee0560c50abe32ecc424
   pullPolicy: IfNotPresent
 
 securityContext: