Bump hyperopt from 0.2.3 to 0.2.4

Bumps [hyperopt](https://github.com/hyperopt/hyperopt) from 0.2.3 to 0.2.4.
- [Release notes](https://github.com/hyperopt/hyperopt/releases)
- [Changelog](https://github.com/hyperopt/hyperopt/blob/master/RELEASE.txt)
- [Commits](https://github.com/hyperopt/hyperopt/commits/0.2.4)

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

Author: dependabot-preview[bot]

examples/requirements-examples.txt

@@ -1,4 +1,4 @@
 torch==1.5.0
-hyperopt==0.2.3
+hyperopt==0.2.4
 torchvision==0.6.0
 matplotlib==3.2.1