[Advent bug squashing] extraneous build dependency in biopython

Hi all,

Today's uploads covered #1058967, opened this morning, about
removing the now unneeded python3-unittest2 dependency in
python-biopython.  Thanks go to Alexandre Detiste for hunting
those issues down.

I also refreshed a couple of packages to their newer upstream
versions, and fixed #1043663 affecting clonalorigin, yet another
case of failure to double build from source, while waiting for
python-biopython test suites to finish.  Also special mention to
Andreas, who uploaded pirs so the boost 1.83 transition bug
#1056023 gets actually fixed in the archive; I forgot to push
the package yesterday, thank you!

Have a good evening,  :)
-- 
  .''`.  Étienne Mollier <[email protected]>
 : :' :  gpg: 8f91 b227 c7d6 f2b1 948c  8236 793c f67e 8f0d 11da
 `. `'   sent from /dev/pts/2, please excuse my verbosity
   `-    on air: Nightingale - To My Inspiration

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