Fixed publication effective date not reindexed after publish.

[gbastien]

Added test_published_publication_is_timestamped

[github-actions]

File	Coverage
All files	88%	❌
src/plonemeeting/portal/core/adapters.py	96%	✅
src/plonemeeting/portal/core/cache.py	83%	❌
src/plonemeeting/portal/core/interfaces.py	81%	❌
src/plonemeeting/portal/core/patches.py	96%	✅
src/plonemeeting/portal/core/setuphandlers.py	96%	✅
src/plonemeeting/portal/core/sync_utils.py	91%	✅
src/plonemeeting/portal/core/utils.py	91%	✅
src/plonemeeting/portal/core/vocabularies.py	87%	❌
src/plonemeeting/portal/core/browser/contact_info.py	80%	❌
src/plonemeeting/portal/core/browser/footer.py	87%	❌
src/plonemeeting/portal/core/browser/homepage.py	97%	✅
src/plonemeeting/portal/core/browser/institution.py	89%	❌
src/plonemeeting/portal/core/browser/item.py	88%	❌
src/plonemeeting/portal/core/browser/nextprevious.py	66%	❌
src/plonemeeting/portal/core/browser/publication.py	84%	❌
src/plonemeeting/portal/core/browser/sitemap.py	58%	❌
src/plonemeeting/portal/core/browser/sync.py	57%	❌
src/plonemeeting/portal/core/browser/utils.py	80%	❌
src/plonemeeting/portal/core/content/file.py	91%	✅
src/plonemeeting/portal/core/content/institution.py	97%	✅
src/plonemeeting/portal/core/content/publication.py	95%	✅
src/plonemeeting/portal/core/events/institution.py	94%	✅
src/plonemeeting/portal/core/events/publication.py	65%	❌
src/plonemeeting/portal/core/faceted/criteria.py	71%	❌
src/plonemeeting/portal/core/faceted/widgets/root_path.py	80%	❌
src/plonemeeting/portal/core/faceted/widgets/select.py	76%	❌
src/plonemeeting/portal/core/rest/base.py	75%	❌
src/plonemeeting/portal/core/rest/meeting.py	53%	❌
src/plonemeeting/portal/core/rest/site.py	93%	✅
src/plonemeeting/portal/core/viewlets/logo.py	76%	❌

Minimum allowed coverage is 90%

Generated by 🐒 cobertura-action against 060c080

[coveralls]

coverage: 88.122% (+0.04%) from 88.086%
when pulling 060c080 on PM-4252_fix_effective_not_reindexed_after_publish
into 8907d10 on master.

[duchenean]

LGTM 👍