Bump setuptools from 50.3.1 to 50.3.2 (#310)

Bumps [setuptools](https://github.com/pypa/setuptools) from 50.3.1 to 50.3.2.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/master/CHANGES.rst)
- [Commits](pypa/setuptools@v50.3.1...v50.3.2)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements-dev.txt

@@ -1,4 +1,4 @@
-setuptools==50.3.1
+setuptools==50.3.2
 wheel==0.35.1
 twine==3.2.0
 unittest-xml-reporting==3.0.4