Fix Windows CI: ninja PATH and SSL certificate issues#9417

Draft

zy1git wants to merge 4 commits intopytorch:mainfrom

zy1git:fix-windows-wheel-0303

Commits on Mar 4, 2026

Fix Windows CI: ninja PATH and SSL certificate issues
Zhitao Yu
committed
use conda ninja instead of pip ninja
Zhitao Yu
committed
Fix Windows ninja crash by limiting parallel jobs
Zhitao Yu
committed
Reduce MAX_JOBS from 4 to 1 to fix ninja crash
Zhitao Yu
committed