Bump numpy from 1.17.3 to 1.22.0 in /getting-started

Bumps [numpy](https://github.com/numpy/numpy) from 1.17.3 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@v1.17.3...v1.22.0)

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

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

getting-started/requirements.txt

@@ -30,7 +30,7 @@ more-itertools==7.2.0
 nbconvert==5.6.1
 nbformat==4.4.0
 notebook==6.0.2
-numpy==1.17.3
+numpy==1.22.0
 pandas==0.25.3
 pandocfilters==1.4.2
 parso==0.5.1