Bump numpy from 1.18.1 to 1.22.0 (#170)

Bumps [numpy](https://github.com/numpy/numpy) from 1.18.1 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@v1.18.1...v1.22.0)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ certifi==2019.11.28
 cycler==0.10.0
 kiwisolver==1.1.0
 matplotlib==3.1.3
-numpy==1.18.1
+numpy==1.22.0
 pyparsing==2.4.6
 PyQt5==5.12.3
 PyQt5-sip==4.19.18