Adjust check-in time a bit later (#395)

Author: stefanv

content/summits/developer/2023/_index.md

@@ -45,7 +45,7 @@ during our event._
 | 9:30--13:00 | Work session |
 | 13:00--14:30 | Lunch & campus walk |
 | 14:30--17:00 | Work session |
-| 17:00--18:00 | Check-in |
+| 17:30--18:00 | Check-in |
 | 19:00 | Dinner at [Eureka!](https://goo.gl/maps/g45EmtFn6bjUJSoS6) |
 {{< /details >}}
 
@@ -56,7 +56,7 @@ during our event._
 | 9:30--13:00 | Work session |
 | 13:00--14:30 | Lunch & campus walk |
 | 14:30--17:00 | Work session |
-| 17:00--17:45 | Check-in |
+| 17:15--17:45 | Check-in |
 | 18:30 | Dinner at [Kate's Pub](https://goo.gl/maps/HBFdQSzNkfKY427W9) |
 {{< /details >}}
 
@@ -67,7 +67,7 @@ during our event._
 | 9:30--13:00 | Work session |
 | 13:00--14:30 | Lunch & campus walk |
 | 14:30--17:00 | Work session |
-| 17:00--18:00 | Check-in |
+| 17:30--18:00 | Check-in |
 | | Dinner (self organized) |
 {{< /details >}}
 
@@ -78,7 +78,7 @@ during our event._
 | 9:30--13:00 | Work session |
 | 13:00--14:30 | Lunch & campus walk |
 | 14:30--17:00 | Work session |
-| 17:00--18:00 | Check-in |
+| 17:30--18:00 | Check-in |
 | 19:00 | Dinner at [Big Time Brewery & Alehouse](https://goo.gl/maps/E55tA1vifpX9CeC76) |
 {{< /details >}}