Setting version to 0.19.0.dev1

[reinecke]

Setting the version to 0.19.0.dev1 to start collecting next release features.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.13%. Comparing base (4423671) to head (f5544da).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1976   +/-   ##
=======================================
  Coverage   85.13%   85.13%           
=======================================
  Files         181      181           
  Lines       12783    12783           
  Branches     1206     1206           
=======================================
  Hits        10883    10883           
  Misses       1717     1717           
  Partials      183      183           

Flag	Coverage Δ
py-unittests	85.13% <ø> (ø)

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