Bump numpy from 1.16.3 to 1.22.0 in /APR2019_MeetUp

Bumps [numpy](https://github.com/numpy/numpy) from 1.16.3 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@v1.16.3...v1.22.0)

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

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

Author: dependabot[bot]

APR2019_MeetUp/requirements.txt

@@ -26,7 +26,7 @@ mistune==0.8.4
 nbconvert==5.5.0
 nbformat==4.4.0
 notebook==5.7.8
-numpy==1.16.3
+numpy==1.22.0
 pandas==0.24.2
 pandas-profiling==1.4.2
 pandocfilters==1.4.2