docs: Update use citations and general citations to latest distribution

[matthewfeickert]

Description

Update the use and general citations to reflect publications of preprints in journals.

• ATLAS publication 'Search for events with a pair of displaced vertices from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in pp collisions at \sqrt s =13  TeV' is published as Phys.Rev.D 106 (2022) 3, 032005. https://doi.org/10.1103/PhysRevD.106.032005
• 'Publishing statistical models' is published as SciPost Phys. 12 (2022) 1, 037. https://doi.org/10.21468/SciPostPhys.12.1.037
• 'Reinterpreting the ATLAS bounds on heavy neutral leptons in a realistic neutrino oscillation model' is published as JHEP 12 (2021) 182. https://doi.org/10.1007/JHEP12(2021)182

Checklist Before Requesting Reviewer

• Tests are passing
• "WIP" removed from the title of the pull request
• Selected an Assignee for the PR to be responsible for the log summary

Before Merging

For the PR Assignees:

• Summarize commit messages into a comprehensive review of the PR

* Update use citations and general citations references to include their journal
  publication information.
   - ATLAS publication https://inspirehep.net/literature/2040545 is published as
     Phys.Rev.D 106 (2022) 3, 032005. https://doi.org/10.1103/PhysRevD.106.032005
   - 'Publishing statistical models' https://inspirehep.net/literature/1919763 is
     published as SciPost Phys. 12 (2022) 1, 037. https://doi.org/10.21468/SciPostPhys.12.1.037
   - 'Reinterpreting the ATLAS bounds on heavy neutral leptons in a realistic neutrino oscillation model'
     https://inspirehep.net/literature/1893584 is published as JHEP 12 (2021) 182.
     https://doi.org/10.1007/JHEP12(2021)182
* Add DOI to SimpleAnalysis ATLAS PUB note. http://dx.doi.org/10.17181/CERN.R6S3.0QKV

[matthewfeickert]

Relevant RTD build: https://pyhf--2026.org.readthedocs.build/en/2026/citations.html#use-in-publications

[codecov]

Codecov Report

Base: 98.29% // Head: 98.29% // No change to project coverage 👍

Coverage data is based on head (0e7fd8a) compared to base (c2710e9).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2026   +/-   ##
=======================================
  Coverage   98.29%   98.29%           
=======================================
  Files          69       69           
  Lines        4529     4529           
  Branches      738      738           
=======================================
  Hits         4452     4452           
  Misses         45       45           
  Partials       32       32           

Flag	Coverage Δ
contrib	27.51% <ø> (ø)
doctest	61.13% <ø> (ø)
unittests-3.10	96.31% <ø> (ø)
unittests-3.7	96.28% <ø> (ø)
unittests-3.8	96.33% <ø> (ø)
unittests-3.9	96.35% <ø> (ø)

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