Fix CI issue: numpy requirement for Python 3.14 on ARM64 Windows (#5977)

* Fix pip install conflicts in tests/requirements.txt

- Fix numpy version conflict for Python 3.14 on ARM64 by excluding
  Python 3.14+ from the ARM64-specific numpy>=2.3.0 requirement
- Add scipy requirement for Python 3.13 on Windows

Co-authored-by: Cursor <cursoragent@cursor.com>

* Revert "Fix pip install conflicts in tests/requirements.txt"

This reverts commit 1d63c73be4fca63d660488e6efab703f51405fc7.

* Fix numpy requirement for Python 3.14 on ARM64 Windows

Change numpy==2.4.0 to numpy>=2.4.0 for Python 3.14+ to allow
pip to install numpy 2.4.1 or later versions, which are available
for Python 3.14 on ARM64 Windows (MSYS2) where numpy 2.4.0 is not.

Co-authored-by: Cursor <cursoragent@cursor.com>

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Co-authored-by: Cursor <cursoragent@cursor.com>