Bump numpy from 1.18.4 to 1.22.0

Bumps [numpy](https://github.com/numpy/numpy) from 1.18.4 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@v1.18.4...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

@@ -8,7 +8,7 @@ mysql-connector-python==8.0.20
 mysql-connector==2.2.9
 networkx==2.4
 nose==1.3.7
-numpy==1.18.4
+numpy==1.22.0
 pandas==1.0.3
 plotly==4.7.1
 protobuf==3.15.0