Add Arcade 2024 to the completed YSWS programs list

Might backfill past YSWS programs in the future.

programs.json

@@ -216,6 +216,14 @@
         }
     ],
     "completed": [
+        {
+            "name": "Arcade",
+            "description": "The summer is yours for the making",
+            "website": "https://hackclub.com/arcade",
+            "slack": "https://hackclub.slack.com/archives/C06SBHMQU8G",
+            "slackChannel": "#hack-hour"
+            "status": "completed"
+        },
         {
             "name": "Blot",
             "description": "Write code, make art, and get a drawing machine.",
@@ -284,4 +292,4 @@
             "ended": "Ended October 21st"
         }
     ]
-}
+}