Update ext4plus to 0.1.0-alpha.5

[arihant2math]

Full changelog: https://github.com/arihant2math/ext4plus/blob/main/CHANGELOG.md

Mostly cleanup, but fixes a few bugs that caused fsck issues.

• Makes the Dir API more like the File API
• Expose Inode::blocks and Inode::set_blocks.
• Expose Inode::crtime and Inode::set_crtime as well as Metadata.crtime (Option<Duration>, due to lack of availability on 32-bit filesystems). (unused for now)
• Remove all restrictions on block map writing, allowing writing to block maps even with indirect blocks.
• Support extra 2 bits for seconds in timestamp to avoid Y2038 problem as well as nanosecond precision.
• Fix unused_inodes_count not being updated when allocated inodes, leading to inodes possibly being overwritten by other drivers.
• Update i_blocks on writes.
• Set extra_size correctly when creating an inode
• Handle non 128/256-byte inode sizes better

In the works: xattr support, more fsck fixes

[arihant2math]

There were a few issues with the 4th alpha, so I released a 5th alpha with bugfixes.

[hexagonal-sun]

LGTM