zfs: merge openzfs/zfs@d99134be8 (zfs-2.1-release) into stable/13

OpenZFS release 2.1.14

Notable upstream pull request merges:
#15395 1ca531971 Zpool can start allocating from metaslab before TRIMs

have completed

#15571 77b0c6f04 dnode_is_dirty: check dnode and its data for dirtiness

Obtained from: OpenZFS
OpenZFS tag: zfs-2.1.14
OpenZFS commit: d99134be83753266b5f7a79738aeab5b08db1e35