Bump numpy from 1.18.5 to 1.22.0

Bumps [numpy](https://github.com/numpy/numpy) from 1.18.5 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@v1.18.5...v1.22.0)

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

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

Author: dependabot[bot]

requirements.txt

@@ -6,7 +6,7 @@ jaxlib==0.1.69
 kiwisolver==1.2.0
 matplotlib==3.2.1
 numdifftools==0.9.39
-numpy==1.18.5
+numpy==1.22.0
 opt-einsum==3.2.1
 -e git+https://github.com/sigma-py/pacopy.git@8d23487b356644421a25ce02462470acce5864f6#egg=pacopy
 pyparsing==2.4.7