zfs: merge openzfs/zfs@c3b60eded (zfs-2.1-release) into stable/13

zfs: merge openzfs/zfs@c3b60eded (zfs-2.1-release) into stable/13

Notable upstream pull request merges:
  #12015 Replace zstreamdump with zstream link
  #12046 Improve scrub maxinflight_bytes math.
  #12052 FreeBSD: incorporate changes to the VFS_QUOTACTL(9) KPI
  #12072 Let zfs diff be more permissive
  #12091 libzfs: On FreeBSD, use MNT_NOWAIT with getfsstat
  #12104 Reminder to update boot code after zpool upgrade
  #12114 Introduce write-mostly sums
  #12125 Modernise all (most) remaining .TH manpages
  #12145 More aggsum optimizations
  #12149 Multiple man-pages: Move to appropriate section
  #12158 Re-embed multilist_t storage
  #12177 Livelist logic should handle dedup blkptrs
  #12196 Unify manpage makefiles, move pages to better sexions, revisit some
  #12212 Remove pool io kstats

Obtained from:	OpenZFS
OpenZFS commit:	c3b60ededa6e6ce36a457a54451ca153c4c630dc
OpenZFS tag:	zfs-2.1.0-rc7