[GRASS-git] [OSGeo/grass-website] 84ab8f: add foss4g 2023 logo (#348)

[Veronica Andreo]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-website
  Commit: 84ab8fc9bd294a8a160e1993c4a3a69b3733ecf8
      https://github.com/OSGeo/grass-website/commit/84ab8fc9bd294a8a160e1993c4a3a69b3733ecf8
  Author: Veronica Andreo <veroandreo at gmail.com>
  Date:   2023-01-28 (Sat, 28 Jan 2023)

  Changed paths:
    A static/images/conferences_logos/foss4g_2023_logo.png
    M themes/grass/layouts/partials/foss4g.html

  Log Message:
  -----------
  add foss4g 2023 logo (#348)