Update conferences (#468)

Co-authored-by: kjaymiller <[email protected]>

Author: github-actions[bot]

_data/conferences.yml

@@ -1,45 +1,3 @@
-- dates: 9-13 Oct 2024
-  location: NWSC IREC, old Portbell, road
-  name: PyconUg
-  speaking: '* Tobias Thomas - Lightning Talk'
-  summary: 'The conference is a five-day event, 9-13 October. PyconUganda inherit
-    this tradition of an annual event that brings together python enthusiasts, tech
-    audiences and technology business in uganda and around the world.  '
-  type: in-person
-  url: https://ug.pycon.org
-- dates: 25-26 Oct 2024
-  location: University of Health and Allied Sciences, Trafalgar,  Ho.  Ho, Volta Region,
-    Ghana.
-  name: PyHo
-  speaking: '* Kafui - Talk'
-  summary: "PyHo, champion the leverage of Python in education promote diversity and\
-    \ inclusion from underrepresented communities within\r\nthe/beyond our region.\
-    \ Provide the foundational platform for new and experienced speakers alike to\
-    \ share ideas and resources."
-  type: in-person
-  url: https://twitter.com/pythonho
-- dates: 24-28 Sep 2024
-  location: University of Ghana
-  name: Pycon Africa
-  speaking: Ugwu Emmanuel - Lightning talk
-  summary: "PyconAfrica has been announced alongside its. The conference would be\
-    \ held 24-28 September, is a five-day international conference for the community.\
-    \ \r\nPyConAfrica, seek to bring together all amazing folks - or as we call ourselves,\
-    \ Pythonistas - from around the continent and the world to give talks, host tutorials,\
-    \ run hackathons/sprints."
-  type: in-person
-  url: https://africa.pycon.org/
-- dates: 21 - 21 Sep 2024
-  location: Durham, NC, USA
-  name: Black Python Devs Leadership Summit
-  speaking: "* [Afi Gbadago](https://www.linkedin.com/in/abigail-afi-gbadago/)\r\n\
-    * [Velda Kiara](https://www.linkedin.com/in/veldakiara/)\r\n* [Jay Miller](https://www.linkedin.com/in/kjaymiller)\r\
-    \n* [Ron Maravanyika](https://www.linkedin.com/in/ronnzw/)\r\n* [Wesley Faulkner](https://www.linkedin.com/in/wesley83/)\r\
-    \n* [Monica Oyugi](https://www.linkedin.com/in/monicaoyugi/)"
-  summary: We are happy to announce the 2024 Black Python Devs Leadership Summit,
-    held at the Caktus Group in Durham, North Carolina.
-  type: both
-  url: https://blackpythondevs.com/leadership-summit-2024
 - dates: 22 - 27 Sep 2024
   location: Durham, North Carolina, United States
   name: DjangoCon US 2024