build(deps): 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:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/base.txt

@@ -7,6 +7,6 @@ pypac>=0.16.3,<1
 python-rule-engine>=0.5,<0.6
 python-win-ad>=0.6.2,<1 ; sys_platform == 'win32'
 pyyaml>=5.4,<7
-pywin32==306 ; sys_platform == 'win32'
+pywin32==308 ; sys_platform == 'win32'
 requests>=2.31,<3
 truststore>=0.8,<1