Bump numpy from 1.21.0 to 1.22.0 in /samples/python (#58)

Bumps [numpy](https://github.com/numpy/numpy) from 1.21.0 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@v1.21.0...v1.22.0)

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

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Author: dependabot[bot]

samples/python/requirements.txt

@@ -1,3 +1,3 @@
-numpy==1.21.0
+numpy==1.22.0
 pyopencl==2021.1.6
 Pillow==9.0.1