Bump urllib3 from 1.22 to 1.24.2 in /util/pingdom
Bump urllib3 from 1.22 to 1.24.2 in /util/pingdom

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.22 to 1.24.2.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/master/CHANGES.rst)
- [Commits](https://github.com/urllib3/urllib3/compare/1.22...1.24.2)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
EDUlib/configuration,stvstnfrd/configuration,edx/configuration,stvstnfrd/configuration,EDUlib/configuration,EDUlib/configuration,edx/configuration,arbrandes/edx-configuration,EDUlib/configuration,stvstnfrd/configuration,arbrandes/edx-configuration,stvstnfrd/configuration,mitodl/configuration,appsembler/configuration,appsembler/configuration,appsembler/configuration,arbrandes/edx-configuration,mitodl/configuration,edx/configuration,arbrandes/edx-configuration,EDUlib/configuration,edx/configuration,stvstnfrd/configuration,mitodl/configuration,appsembler/configuration,arbrandes/edx-configuration,mitodl/configuration