[SEA-2025] Adjust seattle event redirect

Author: phrawzty

static/_redirects

@@ -108,7 +108,7 @@
 /santa-maria/*		/events/2018-santa-maria/:splat		302
 /santiago/*		/events/2025-santiago/:splat		302
 /sao-paulo/*		/events/2025-sao-paulo/:splat		302
-/seattle/*		/events/2025-seattle/:splat		302
+/seattle/*		/events/2024-seattle/:splat		302
 /shanghai/*		/events/2020-shanghai/:splat		302
 /shenzhen/*		/events/2018-shenzhen/:splat		302
 /silicon-valley/*	/events/2018-silicon-valley/:splat	302