Bump numpy from 1.19.1 to 1.19.2

Bumps [numpy](https://github.com/numpy/numpy) from 1.19.1 to 1.19.2.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/master/doc/HOWTO_RELEASE.rst.txt)
- [Commits](numpy/numpy@v1.19.1...v1.19.2)

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

Author: dependabot-preview[bot]

requirements-dev.txt

@@ -7,7 +7,7 @@ flake8==3.8.3
 ipdb==0.13.3
 ipython==7.16.1
 mypy==0.782
-numpy==1.19.1
+numpy==1.19.2
 pyroma==2.6
 pytest-cov==2.10.1
 pytest==6.0.1