Add Deltek as a sponsor

Author: anatoliykmetyuk

_data/scala-days-sponsors.yml

@@ -116,3 +116,8 @@ sponsors:
     type: Bronze
     logo: /resources/img/scala-days-sponsors/recorded-future.png
     url: https://www.recordedfuture.com/
+
+  - title: Deltek
+    type: Bronze
+    logo: /resources/img/scala-days-sponsors/deltek.png
+    url: https://www.deltek.com/