Bump numpy from 1.16.2 to 1.22.0 in /DeployFlaskAzure

Bumps [numpy](https://github.com/numpy/numpy) from 1.16.2 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@v1.16.2...v1.22.0)

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

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

Author: dependabot[bot]

DeployFlaskAzure/requirements.txt

@@ -1,6 +1,6 @@
 Flask==1.1.1
 seaborn==0.9.0
-numpy==1.16.2
+numpy==1.22.0
 pandas==0.25.1
 matplotlib==3.0.3
 scikit_learn==0.23.1