Bump virtualenv from 21.7.13 to 21.14.13 - #493

Failed to save: Unable to reserve cache with key setup-uv-2-x86_64-pc-windows-msvc-windows-2025-3.12.10-0511f6d2d16697c3a47f0433235f95124062cc66ea54565fd72959694ac8edd1, another job may be creating this cache.