Bump kornia from 0.3.1 to 0.4.0

Bumps [kornia](https://github.com/kornia/kornia) from 0.3.1 to 0.4.0.
- [Release notes](https://github.com/kornia/kornia/releases)
- [Commits](kornia/kornia@v0.3.1...v0.4.0)

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

Author: dependabot[bot]

requirements.txt

@@ -27,7 +27,7 @@ catboost==0.24.1
 GPy==1.9.9
 lightgbm==3.0.0
 xgboost==1.2.0
-kornia==0.3.1
+kornia==0.4.0
 
 # other
 pytest==5.4.1