Bump py from 1.8.0 to 1.10.0 in /api

Bumps [py](https://github.com/pytest-dev/py) from 1.8.0 to 1.10.0.
- [Release notes](https://github.com/pytest-dev/py/releases)
- [Changelog](https://github.com/pytest-dev/py/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/py@1.8.0...1.10.0)

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

api/requirements.txt

@@ -22,7 +22,7 @@ packaging==19.2
 pluggy==0.13.1
 prometheus-client==0.7.1
 prometheus-flask-exporter==0.12.1
-py==1.8.0
+py==1.10.0
 pyparsing==2.4.5
 pyrsistent==0.15.6
 pytest==5.3.2