Bump numpy from 1.13.3 to 1.22.0

Bumps [numpy](https://github.com/numpy/numpy) from 1.13.3 to 1.22.0.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/HOWTO_RELEASE.rst)
- [Commits](numpy/numpy@v1.13.3...v1.22.0)

---
updated-dependencies:
- dependency-name: numpy
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ bleach==1.5.0
 enum34==1.1.6
 html5lib==0.9999999
 Markdown==2.6.11
-numpy==1.13.3
+numpy==1.22.0
 pandas==0.19.0
 protobuf==3.5.1
 python-dateutil==2.6.1