Update PCD @ Shanghai on the PCD map

[github-actions]

Closes #244

This PR was generated from the "Edit Event" issue form for PCD @ Shanghai.
Submitted by @avantcontra.

Review checklist

• The changes below are correct
• The map pin is placed correctly (check Plus Code)
• The event displays correctly in the Netlify preview (link posted by the Netlify bot)

Changes

Field	Previous	New
Address	Shanghai New York University, Century Avenue, Pudong New Area, Shanghai	567 West Yangsi Road, Shanghai
Plus Code	8Q336GGM+7H	8Q336GGM+8M
Organization	No response	NYU Shanghai IMA, Raven Kwok, Luo Xiao, code2art Community
Event page	No response	https://pcd2026.mysxl.cn/
Short description	No response	Reconnection: PCD Shanghai 2026
Activities	Beginner introductions to Processing or p5.js, Hands-on workshops, Other, Show-and-tell, Student project presentations	Beginner introductions to Processing or p5.js, Hands-on workshops, Show-and-tell, Student project presentations
Organizers	No response	NYU Shanghai IMA, Raven Kwok (Guo, Ruiwen), Contra (Luo Xiao), code2art Community

Long description

In 2026, Processing turns 25. To mark the occasion, Processing Community Day (PCD) returns as a worldwide celebration! PCD is a global network of community-led events that brings together artists, designers, technologists, educators, and open-source communities around the world. It has been seven years since the last PCD Shanghai. This event aims to establish a reconnection for local creative developers working with Processing and p5.js.

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