deskutils/recoll: Update to 1.25.16

• Submitter adopts port

While I'm here:

• Place USE_ variables to the intended USES block

Changelog:

• All Python scripts now use Python 3 by default. They are still supposedly compatible with Python 2. (The port stays with Python 2.7 for a while as not all dependencies are ready for Python 3, yet).

https://www.lesbonscomptes.com/recoll/release-1.25.html

PR: 238147
Submitted by: jjuanino@gmail.com