Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

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upstream issue: seaweedfs/seaweedfs#6967

## What this PR does


### Release note

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```release-note
[seaweedfs] Fix drift for security config
```

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## Summary by CodeRabbit

* **Bug Fixes**
* Ensured JWT signing keys in the SeaweedFS security configuration
remain consistent across Helm upgrades, preventing unintentional key
rotation and maintaining stable authentication.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->