Add HES-SO to sponsors

Author: anatoliykmetyuk

_data/scala-days-sponsors.yml

@@ -121,3 +121,8 @@ sponsors:
     type: Bronze
     logo: /resources/img/scala-days-sponsors/deltek.png
     url: https://www.deltek.com/
+
+  - title: HES-SO Valais-Wallis
+    type: Bronze
+    logo: /resources/img/scala-days-sponsors/hesso.png
+    url: https://www.hevs.ch/en/applied-research/research-institute-informatics/