[#860] Issue/limit max length of product summary

[vaszig]

No description provided.

[alextreme]

Fails due to conflicting migrations after merging in #486

[codecov-commenter]

Codecov Report

Merging #482 (d815799) into develop (6d89fcb) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff            @@
##           develop     #482   +/-   ##
========================================
  Coverage    96.50%   96.51%           
========================================
  Files          512      514    +2     
  Lines        18493    18529   +36     
========================================
+ Hits         17847    17883   +36     
  Misses         646      646           

Impacted Files	Coverage Δ
src/open_inwoner/pdc/models/product.py	89.43% <ø> (ø)
..._inwoner/pdc/migrations/0049_auto_20230222_0901.py	100.00% <100.00%> (ø)
...woner/pdc/migrations/0050_alter_product_summary.py	100.00% <100.00%> (ø)
src/open_inwoner/pdc/tests/test_data_migrations.py	100.00% <100.00%> (ø)

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[Bartvaderkin]

Merging this as it is green and I need to rebase on it and use as migration dependency.