chore(deps-dev): bump pywin32 from 306 to 308

Bumps [pywin32](https://github.com/mhammond/pywin32) from 306 to 308.
- [Release notes](https://github.com/mhammond/pywin32/releases)
- [Changelog](https://github.com/mhammond/pywin32/blob/main/CHANGES.txt)
- [Commits](https://github.com/mhammond/pywin32/commits)

---
updated-dependencies:
- dependency-name: pywin32
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -88,7 +88,7 @@ python-dotenv==1.0.1
 
 pytest-trio==0.8.0
 
-pywin32==306 ; platform_system == 'Windows'
+pywin32==308 ; platform_system == 'Windows'
 
 requests==2.32.3 ; python_version >= '3.7'