[CUDA] Zero the cuDNN SDPA graph cache key before hashing it - #34081

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: nuget/setup-nuget@d105a947828025cd7a980103c35ba2bfae586d0f. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/