Update FUNDING.yml

Author: yasulab

.github/FUNDING.yml

@@ -1,6 +1,6 @@
 # These are supported funding model platforms
 
-custom: https://dojocon2023.coderdojo.jp/posts/sponsors/
+custom: https://dojocon2024.coderdojo.jp/posts/sponsors/
 github:                 # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
 patreon:                # Replace with a single Patreon username
 open_collective:        # Replace with a single Open Collective username