[seaweedfs] Fix timeout while uploading hude files (#1483)

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

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## What this PR does

related to https://github.com/seaweedfs/seaweedfs/pull/7294

### Release note

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```release-note
[]
```

<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **New Features**
* Allow supplying extra S3 server startup arguments via configuration,
enabling custom runtime flags for the S3 service.

* **Chores**
* Set default S3 idle timeout to 60 seconds for improved default
connection handling.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/system/seaweedfs/charts/seaweedfs/templates/s3/s3-deployment.yaml

@@ -152,7 +152,10 @@ spec:
               {{- if .Values.s3.auditLogConfig }}
               -auditLogConfig=/etc/sw/s3_auditLogConfig.json \
               {{- end }}
-              -filer={{ template "seaweedfs.name" . }}-filer-client.{{ .Release.Namespace }}:{{ .Values.filer.port }}
+              -filer={{ template "seaweedfs.name" . }}-filer-client.{{ .Release.Namespace }}:{{ .Values.filer.port }} \
+              {{- range .Values.s3.extraArgs }}
+              {{ . }} \
+              {{- end }}
           volumeMounts:
             {{- if or (eq .Values.s3.logs.type "hostPath") (eq .Values.s3.logs.type "emptyDir") }}
             - name: logs

packages/system/seaweedfs/values.yaml

@@ -84,6 +84,8 @@ seaweedfs:
       auditLogConfig: {}
   s3:
     enabled: true
+    extraArgs:
+    - -idleTimeout=60
     enableAuth: false
     readinessProbe:
       scheme: HTTPS