Bump numpy from 1.21.2 to 1.22.0 in /requirements

Bumps [numpy](https://github.com/numpy/numpy) from 1.21.2 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@v1.21.2...v1.22.0)

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

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

Author: dependabot[bot]

requirements/base.txt

@@ -13,7 +13,7 @@ aiofiles==0.7.0
 # TF Serving
 # ------------------------------------------------------------------------------
 Pillow==9.0.1
-numpy==1.21.2
+numpy==1.22.0
 tensorflow-serving-api==2.6.0
 
 # GRPCIO