Bump numpy from 1.16.4 to 1.26.4

Bumps [numpy](https://github.com/numpy/numpy) from 1.16.4 to 1.26.4.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/RELEASE_WALKTHROUGH.rst)
- [Commits](numpy/numpy@v1.16.4...v1.26.4)

---
updated-dependencies:
- dependency-name: numpy
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -4,7 +4,7 @@ boto3==1.18.34
 gunicorn
 jinja2<3.1.0
 lxml>=2.3
-numpy==1.16.4
+numpy==1.26.4
 pandas==1.1.4
 #prometheus-flask-exporter==0.20.3 # installed in Dockerfile before CKAN
 psycopg2==2.8.6