bug/73-fix serialization issue

[kinkerl]

Description

Describe:

• As discussed, this fixes a serialization issue during the upload of the addon.
• https://github.com/nephila/djangocms-page-sitemap/issues/73

Checklist

• [x] I have read the contribution guide
• [ ] Code lint checked via inv lint
• [x] changes file included (see docs)
• [ ] Usage documentation added in case of new features
• [ ] Tests added

[kinkerl]

looks like there is an issue with the pipeline which is unrelated to my change. can somebody please take a look at it? thanks!

[yakky]

@kinkerl thanks a lot for the fix. I am going to merge this shortly after fixing the github actions configuration

[coveralls]

Coverage remained the same at 100.0% when pulling 90c4044e0fbd0f55f20652b2b13145beba87dbd3 on kinkerl:develop into deefc8ce1d9f292478073caca6db32d09cc099c5 on nephila:develop.

[codecov[bot]]

Codecov Report

Merging #72 (90c4044) into develop (deefc8c) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##           develop       #72   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            9         9           
  Lines          150       150           
  Branches        17        17           
=========================================
  Hits           150       150           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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