chore(helm): update image docker.io/machines/filestash digest to d76f85c (#28245)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/machines/filestash | digest | `c66254d` -> `d76f85c` |

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

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### Configuration

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Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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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: 8.2.19
+version: 8.2.20

charts/stable/filestash/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: docker.io/machines/filestash
-  tag: latest@sha256:c66254dbbe4568e0a2f9a47f11700d34140b7a73e1c9fe23aa0663f782bfc2dd
+  tag: latest@sha256:d76f85c395b9cd0a825a2c414f62dc1a537a9974e3f380709471b4da86794d3f
   pullPolicy: IfNotPresent
 
 securityContext: