chore(vhd-lib/createVhdStreamWithLength): use readChunkStrict

Related to zammad#10996

Not only it simplified the code a bit, but it also provides better error messages, especially on stream end.

packages/vhd-lib/createVhdStreamWithLength.js

@@ -1,8 +1,7 @@
 'use strict'
 
-const assert = require('assert')
 const { pipeline, Transform } = require('readable-stream')
-const { readChunk } = require('@vates/read-chunk')
+const { readChunkStrict } = require('@vates/read-chunk')
 
 const checkFooter = require('./checkFooter')
 const checkHeader = require('./_checkHeader')
@@ -42,9 +41,8 @@ module.exports = async function createVhdStreamWithLength(stream) {
   let streamPosition = 0
 
   async function readStream(length) {
-    const chunk = await readChunk(stream, length)
-    assert.strictEqual(chunk.length, length)
-    streamPosition += chunk.length
+    const chunk = await readChunkStrict(stream, length)
+    streamPosition += length
     readBuffers.push(chunk)
     return chunk
   }