build(deps): update pyside6 requirement from ~=6.8.1 to ~=6.8.2

Updates the requirements on [pyside6](https://pyside.org) to permit the latest version.

---
updated-dependencies:
- dependency-name: pyside6
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,7 +1,7 @@
 PyYAML~=6.0.2
 psutil~=6.1.1
 pynvml~=12.0.0
-PySide6~=6.8.1
+PySide6~=6.8.2
 safetensors~=0.5.2
 numpy<2.0.0
 torch~=2.5.1