[openstreetmap/openstreetmap-website] SoTM Africa 2025 => SoTM Africa 2026 Conference Banner Update (PR #7077)

[Emmanuel Jolaiya]

### Description

This PR updates the banner configuration to reflect the new dates and graphics following the agreement by the community.

You can view, comment on, or merge this pull request online at:

  https://github.com/openstreetmap/openstreetmap-website/pull/7077

-- Commit Summary --

  * chore: updated sotm africa conference banner

-- File Changes --

    D app/assets/images/banners/sotm_africa_2025.png (0)
    A app/assets/images/banners/sotm_africa_2026.png (0)
    M config/banners.yml (12)

-- Patch Links --

https://github.com/openstreetmap/openstreetmap-website/pull/7077.patchhttps://github.com/openstreetmap/openstreetmap-website/pull/7077.diff
-- 
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/7077
You are receiving this because you are subscribed to this thread.

Message ID: <openstreetmap/openstreetmap-website/pull/7077 at github.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/rails-dev/attachments/20260509/ffcc36f8/attachment-0001.htm>