Collective.solr

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New Feature:

- Add solr_cleanup and solr_sync command line options
[tisto]

- Add maintenance docs with command line options
[tisto]

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New Feature:

- Allow using of environment variables for SolR config
[mpeeters]

Bugfix:

- Rename authentication fields to avoid issues with password managers
[mpeeters]

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New Features:

- Add option to upload binary files via Tika instead of relying on accessing blobs via the file system
[NicolasGoeddel, timo]

- Add support of SolR basic authentication
[mpeeters]

Internal:

- Remove plone.app.contenttypes conditionals in code.
[timo]

- Remove collective.js.showmore dependency
[timo]

- Remove plone.app.contenttypes conditionals in code
[timo]

- Remove traces of collective.indexing
[timo]

- Remove Plone 4.3 GS profile
[timo]

- Remove AT conditionals
[timo]

- Remove collective.indexing and LinguaPlone from test layer
[timo]

- Use Solr 8 instead of Solr 7 in the default dev/testing buildout
[timo]

- Add black/flake8 code analysis to gha
[timo]

--------------------

Breaking:

- Drop Python 2, Plone 4.3, Plone 5.0, Plone 5.1 compatibility
[timo]

New Features:

- Add support for Plone 6 / Volto
[timo]

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- Fix contentlisting when looking up unknown data
[csenger]

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- Fix "AssertionError: term is not a simple search" with forced
simple search.
[csenger]