Bump opencv-python from 3.4.2.16 to 4.2.0.32 in /hyperlpr_py3

Bumps [opencv-python](https://github.com/skvark/opencv-python) from 3.4.2.16 to 4.2.0.32.
- [Release notes](https://github.com/skvark/opencv-python/releases)
- [Commits](https://github.com/skvark/opencv-python/commits)

---
updated-dependencies:
- dependency-name: opencv-python
  dependency-type: direct:production
...

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

hyperlpr_py3/requirements.txt

@@ -30,7 +30,7 @@ mysqlclient==1.4.6
 networkx==2.4
 numpy==1.17.4
 opencv-contrib-python==3.4.2.16
-opencv-python==3.4.2.16
+opencv-python==4.2.0.32
 Pillow==7.0.0
 protobuf==3.11.3
 pyparsing==2.4.6