Bump numpy from 1.11.1 to 1.22.0 in /app

Bumps [numpy](https://github.com/numpy/numpy) from 1.11.1 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](https://github.com/numpy/numpy/compare/v1.11.1...v1.22.0)

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

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

app/requirements.txt

@@ -10,7 +10,7 @@ influxdb==4.1.0
 itsdangerous==0.24
 Jinja2>=2.10.1
 MarkupSafe==0.23
-numpy==1.11.1
+numpy==1.22.0
 pandas==0.18.1
 python-dateutil==2.5.3
 python-engineio>=3.9.0