Merge pull request #21070 from Snuffleupagus/ChunkedStream-getBytes-non-length-update-pos

Update the position when calling `ChunkedStream.prototype.getBytes` without a length

src/core/chunked_stream.js

@@ -190,6 +190,7 @@ class ChunkedStream extends Stream {
       if (strEnd > this.progressiveDataLength) {
         this.ensureRange(pos, strEnd);
       }
+      this.pos = strEnd;
       return bytes.subarray(pos, strEnd);
     }