fix: Invalid volume mount conditional in filer template (#7992)

There is a mistmatch in the conditionals for the definition and mounting of the `config-users` volume in the filer's template. 

Volume definition:
```
        {{- if and .Values.filer.s3.enabled .Values.filer.s3.enableAuth }}
```
Mount:
```
            {{- if .Values.filer.s3.enableAuth }}
```

This leads to an invalid specification in the case where s3 is disabled but the enableAuth value is set to true, as it tries to mount in an undefined volume. I've fixed it here by adding the extra check to the latter conditional.

k8s/charts/seaweedfs/templates/filer/filer-statefulset.yaml

@@ -229,7 +229,7 @@ spec:
             - name: seaweedfs-filer-log-volume
               mountPath: "/logs/"
             {{- end }}
-            {{- if .Values.filer.s3.enableAuth }}
+            {{- if and .Values.filer.s3.enabled .Values.filer.s3.enableAuth }}
             - name: config-users
               mountPath: /etc/sw
               readOnly: true