Python dependency: Update pywinpty requirement from ==2.0.* to ==3.0.*

Updates the requirements on [pywinpty](https://github.com/spyder-ide/pywinpty) to permit the latest version.
- [Release notes](https://github.com/spyder-ide/pywinpty/releases)
- [Changelog](https://github.com/andfoy/pywinpty/blob/main/CHANGELOG.md)
- [Commits](https://github.com/spyder-ide/pywinpty/compare/v2.0.0...v3.0.2)

---
updated-dependencies:
- dependency-name: pywinpty
  dependency-version: 3.0.2
  dependency-type: direct:production
...

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

requirements.txt

@@ -47,7 +47,7 @@ pyotp==2.*
 python-dateutil==2.*
 pytz==2025.*
 # pinned for https://github.com/andfoy/pywinpty/issues/545
-pywinpty==2.0.*; sys_platform=="win32"
+pywinpty==3.0.*; sys_platform=="win32"
 qrcode[pil]==8.*; python_version >= '3.9'
 setuptools==80.*
 SQLAlchemy==2.*