Bump version to 0.43.2

[lgoettgens]

We already have some changes lined up since the last release.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.02%. Comparing base (efb6ceb) to head (7034e7c).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1810      +/-   ##
==========================================
- Coverage   88.03%   88.02%   -0.01%     
==========================================
  Files         119      119              
  Lines       30057    30057              
==========================================
- Hits        26460    26459       -1     
- Misses       3597     3598       +1     

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[fingolfin]

Fine by me. Perhaps we can wait for #1812 though, that would be nice. But if you need the release now, have a go :-)

[lgoettgens]

I originally wanted it for #1809, but since that turned out to be too hard I am happy to wait for #1812 or even #1811 (but that's not prio one)

[lgoettgens]

#1812 is in now, so I am going to proceed with this