Bump progressbar2 from 3.51.4 to 3.52.1

Bumps [progressbar2](https://github.com/WoLpH/python-progressbar) from 3.51.4 to 3.52.1.
- [Release notes](https://github.com/WoLpH/python-progressbar/releases)
- [Changelog](https://github.com/WoLpH/python-progressbar/blob/develop/CHANGES.rst)
- [Commits](https://github.com/WoLpH/python-progressbar/compare/v3.51.4...v3.52.1)

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

requirements-hyperopt.txt

@@ -7,4 +7,4 @@ scikit-learn==0.23.1
 scikit-optimize==0.7.4
 filelock==3.0.12
 joblib==0.16.0
-progressbar2==3.51.4
+progressbar2==3.52.1