Log Message:
devel/difftastic: update to 0.57.0

0.57 (released 1st April 2024)
Parsing
 - Text file detection is now stricter, considering null bytes as a hint that
   files are binaries.

Diffing
 - Fixed an issue where hidden files (filename starting with .) were ignored
   when diffing directories.
 - Scheme now uses the same slider heuristics as other lisps, preferring the
   outer delimiter.
 - Fixed an issue with line-based diffing where only the first line in a large
   changed region was highlighted. This was particularly noticeable when
   diffing brand new files.

Display
 - Fixed an issue when reporting changes in binary files, where trailing
   whitespace was inconsistent with other changes shown.