userguide: add eve schema generate doc - v3

[jasonish]

Previous PR: https://github.com/OISF/suricata/pull/8971

Just a new PR for cleaner history, contains requested changes from https://github.com/OISF/suricata/pull/8933.

Also contains updated QUIC doc from https://github.com/OISF/suricata/pull/9097.

Generated documentation:

• QUIC: https://jasonish-suricata.readthedocs.io/en/evedoc-v3/output/eve/eve-json-format.html?highlight=quic#event-type-quic
• PGSQL: https://jasonish-suricata.readthedocs.io/en/evedoc-v3/output/eve/eve-json-format.html?highlight=pgsql#field-reference- Complete: https://jasonish-suricata.readthedocs.io/en/evedoc-v3/appendix/eve-index.html

Redmine issue: https://redmine.openinfosecfoundation.org/issues/6288

[codecov[bot]]

Codecov Report

Merging #9165 (263aa37) into master (9b09b29) will decrease coverage by 0.01%. The diff coverage is n/a.

:exclamation: Current head 263aa37 differs from pull request most recent head 6a2fab7. Consider uploading reports for the commit 6a2fab7 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9165      +/-   ##
==========================================
- Coverage   82.34%   82.33%   -0.01%     
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  Files         968      968              
  Lines      273546   273546              
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- Hits       225247   225233      -14     
- Misses      48299    48313      +14     

Flag	Coverage Δ
fuzzcorpus	64.58% <ø> (-0.02%)	:arrow_down:
suricata-verify	60.73% <ø> (-0.02%)	:arrow_down:
unittests	62.90% <ø> (+<0.01%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

[jasonish]

Converting to draft. This has a similar issue to the generated diagrams. If we generate the rst documentation in conf.py, make distcheck will fail, as when the documentation is generated, Suricata is being built in a read-only directory.

If we generate with the Makefile, distcheck will be satisfied, but Readthedocs will fail.

Options include:

• Generate from both conf.py and Makefile
• Manually generate and check-in (like the diagrams)

[catenacyber]

Is there a redmine ticket for this ?

[jasonish]

Is there a redmine ticket for this ?

Do now: https://redmine.openinfosecfoundation.org/issues/6288

[catenacyber]

Closing as stale and needing rebase