Unpin PySide6 in requirements.tx #2857
Description
Is your feature request related to a problem? Please describe.
The latest version of PySide6 conflicts with pyinstaller v5, so the PySide version is pinned in requirements.txt. Now that the pyinstaller issues have been resolved (#2854), this pin should be removed.
Additional context
This will likely require extensive UI testing on multiple OSes, so this is not something that should be done for release v6.0.0.