feat: add Sopra Steria as adopter

Signed-off-by: Awar Abdulkarim <48431495+NotAwar@users.noreply.github.com>

Author: NotAwar

public/images/adopters/sopra-steria-dark.png

@@ -33,3 +33,7 @@ adopters:
     logo_dark: "/images/adopters/cloudraft.svg"
     logo_light: "/images/adopters/cloudraft.svg"
     website: "https://www.cloudraft.io/"
+  - name: "Sopra Steria"
+    logo_dark: "/images/adopters/sopra-steria-dark.png"
+    logo_light: "/images/adopters/sopra-steria-light.png"
+    website: "https://www.soprasteria.no/"