need to set new year on the manual downloads page

**Describe the bug** I think that some years should be 2026 **To Reproduce** Steps to reproduce the behavior: 1. Go to https://julialang.org/downloads/manual-downloads/ **Expected behavior** - Current stable release: v1.12.4 (January 6, ~~2025~~ 2026) - Upcoming release: v1.13.0-beta1 (January 12, ~~2025~~ 2026) thanks!