Bump pytest from 6.1.2 to 6.2.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.1.2 to 6.2.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@6.1.2...6.2.1)

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

Author: dependabot-preview[bot]

poetry.lock

@@ -18,7 +18,7 @@ Flask-Migrate = "2.5.3"
 prometheus_client = "0.8.0"
 psycopg2-binary = "2.8.6"
 py-healthcheck = "1.10.1"
-pytest = "6.1.2"
+pytest = "6.2.1"
 pytest-mock = "3.3.1"
 pytest-cov = "2.10.1"
 python-dateutil = "2.8.1"