🔧 Update sponsors, add Flint (#9699)

* 🔧 Set up sponsor Flint

* 🔧 Add configs for Flint sponsor

docs/en/data/sponsors.yml

@@ -31,3 +31,6 @@ bronze:
   - url: https://www.exoflare.com/open-source/?utm_source=FastAPI&utm_campaign=open_source
     title: Biosecurity risk assessments made easy.
     img: https://fastapi.tiangolo.com/img/sponsors/exoflare.png
+  - url: https://www.flint.sh
+    title: IT expertise, consulting and development by passionate people
+    img: https://fastapi.tiangolo.com/img/sponsors/flint.png

docs/en/data/sponsors_badge.yml

@@ -16,3 +16,4 @@ logins:
   - armand-sauzay
   - databento-bot
   - nanram22
+  - Flint-company