chore(deps): bump pyside6-essentials

Bumps the pip-minor-patch group with 1 update in the / directory: [pyside6-essentials](https://pyside.org).


Updates `pyside6-essentials` from 6.8.3 to 6.11.1

---
updated-dependencies:
- dependency-name: pyside6-essentials
  dependency-version: 6.11.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: pip-minor-patch
...

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

Author: dependabot[bot]

pyproject.toml

@@ -39,7 +39,7 @@ dependencies = [
 [project.optional-dependencies]
 gui = [
     "deadline[gui] >= 0.59, < 0.61",
-    "PySide6-Essentials == 6.8.3",  # Use 6.8 to align with VFXP 2026: https://vfxplatform.com/#reference-platform
+    "PySide6-Essentials == 6.11.1",  # Use 6.8 to align with VFXP 2026: https://vfxplatform.com/#reference-platform
 ]
 
 [project.urls]