add docs/conf.py to commit

[niccokunzmann]

` delimiters, inclusively, may be removed.

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Linked issue

• Contributes to 7.3.0 checklist #1681

Description

The docs/conf.py was changed but not part of the commit.
While make changes adds these directories, they need to be added with --all, to accommodate deletions.

Checklist

• I added a change log entry, following the instructions in Change log entry format.
• I followed icalendar's Artificial intelligence policy and disclosed my Responsible AI use in my commit messages, if applicable.
• I added or updated tests, if applicable.
• I ran and ensured all tests pass locally by following Run tests.
• I added or edited documentation as necessary, both as docstrings to be rendered in the API documentation and narrative documentation, following the Style guide.

Additional information

Upload screenshots, videos, links to documentation, or any other relevant information.

[github-actions]

Profile summary:

GitHub user: niccokunzmann
🟢 No concerns found with user's profile.
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For a more detailed report, run `gh-profiler niccokunzmann`.

Full profile

GitHub user: niccokunzmann
🟢 No concerns found with user's profile.
   🟢 Account age: 15 years
   🟢 Profile information:
        name: Nicco Kunzmann
        blog: https://niccokunzmann.github.io
        location: Wales
        email: niccokunzmann@rambler.ru
        bio:
          Software is only a tool.
          Humanity, your house 🌍 is burning 
          🔥. 
          You can pay me if you would like me to prioritize issues on my repositories.
        mastodon: https://toot.wales/@niccokunzmann
      Empty fields: company
      Orgs: collective, OpenTechSchool, BP2012H1, Jugendhackt, fossasia, loklak, MasterprojectOpenStack2015, Freifunk-Potsdam, cdpoffline, HPIMakerKlub, coderdojo-de-ev, CodersOS, gruener-campus-malchow, KDD-OpenSource, CoderDojoDeutschland, fablabcb, spaceapi-community, HashTec-Potsdam, Brandenburger-Maker, yogdaan, Chaostreff-Potsdam, bioPunkKitchen, Freifunk-Wolfen, foss-wales, AmmanVMS, foss-fund, pycalendar

🟢 No concerns found with recent PR activity.
   10 PRs opened in the last 21 days.
      0 opened against repos the user owns.
      9 opened against repos in publicly associated orgs.
      1 opened against external repos.

   🟢 0 of 1 external PRs merged in the last 21 days.
   🟢 0 of 1 external PRs closed without merging in the last 21 days.

🟢 No concerns found with recent issue activity.
   17 new issues opened in the last 21 days.
      0 opened in repos the user owns.
      11 opened in repos in publicly associated orgs.
      6 opened in external repos.

   🟢 0 external issues closed as NOT_PLANNED.
   🟢 0 external issues opened with the same title.

[read-the-docs-community]

Documentation build overview

📚 icalendar | 🛠️ Build #34150135 | 📁 Comparing b849b17 against latest (a4866a5)

  🔍 Preview build  

2 files changed

± 404.html
± contribute/maintenance.html