filer.backup: fix backing up encrypted chunks

I have done filer.backup test:
replication.toml:
[sink.local]
enabled = true
directory = "/srv/test"
___
system@dat1:/srv/test$ weed filer.backup -filer=app1:8888 -filerProxy
I0228 12:39:28 19571 filer_replication.go:129] Configure sink to local
I0228 12:39:28 19571 filer_backup.go:98] resuming from 2022-02-28 12:04:20.210984693 +0100 CET
I0228 12:39:29 19571 filer_backup.go:113] backup app1:8888 progressed to 2022-02-28 12:04:20.211726749 +0100 CET 0.33/sec

system@dat1:/srv/test$ ls -l
total 16
drwxr-xr-x 2 system system 4096 Feb 28 12:39 a
-rw-r--r-- 1 system system   48 Feb 28 12:39 fu.txt
-rw-r--r-- 1 system system   32 Feb 28 12:39 _index.html
-rw-r--r-- 1 system system   68 Feb 28 12:39 index.php
system@dat1:/srv/test$ cat fu.txt
?	?=?^??`?f^};?{4?Z%?X0=??rV????|"?1??踪~??
system@dat1:/srv/test$
On the active mount on the target server it's:
system@app1:/srv/app$ ls -l
total 2
drwxrwxr-x 1 system system  0 Feb 28 12:04 a
-rw-r--r-- 1 system system 20 Feb 28 12:04 fu.txt
-rw-r--r-- 1 system system  4 Feb 28 12:04 _index.html
-rw-r--r-- 1 system system 40 Feb 28 12:04 index.php
system@app1:/srv/app$ cat fu.txt
This is static boy!
Filer was started with: weed filer master="app1:9333,app2:9333,app3:9333" -encryptVolumeData
It seems like it's still encrypted?

weed/replication/repl_util/replication_util.go

@@ -20,7 +20,7 @@ func CopyFromChunkViews(chunkViews []*filer.ChunkView, filerSource *source.Filer
 		var shouldRetry bool
 
 		for _, fileUrl := range fileUrls {
-			shouldRetry, err = util.ReadUrlAsStream(fileUrl, nil, false, chunk.IsFullChunk(), chunk.Offset, int(chunk.Size), func(data []byte) {
+			shouldRetry, err = util.ReadUrlAsStream(fileUrl, chunk.CipherKey, chunk.IsGzipped, chunk.IsFullChunk(), chunk.Offset, int(chunk.Size), func(data []byte) {
 				writeErr = writeFunc(data)
 			})
 			if err != nil {