Merge tag 'pull-block-2023-11-06' of https://gitlab.com/hreitz/qemu into staging

Block patches:
- One patch to make qcow2's discard-no-unref option do better what it is
  supposed to do (i.e. prevent fragmentation)
- Two fixes for zoned requests

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# Primary key fingerprint: CB62 D7A0 EE38 29E4 5F00  4D34 A1FA 40D0 9801 9CDF

* tag 'pull-block-2023-11-06' of https://gitlab.com/hreitz/qemu:
  file-posix: fix over-writing of returning zone_append offset
  block/file-posix: fix update_zones_wp() caller
  qcow2: keep reference on zeroize with discard-no-unref enabled

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>