Pin configparser to work around pip resolution bug BOM-2015 (#6116)
Pin configparser to work around pip resolution bug BOM-2015 (#6116)

Followup to #6083 and #6115 . pip is also erroneously getting a version of configparser that has dropped Python 2.7 support, so pinning to an older version until we finish upgrading the version of Python running Ansible.
arbrandes/edx-configuration,edx/configuration,EDUlib/configuration,EDUlib/configuration,edx/configuration,mitodl/configuration,stvstnfrd/configuration,arbrandes/edx-configuration,stvstnfrd/configuration,EDUlib/configuration,mitodl/configuration,mitodl/configuration,stvstnfrd/configuration,edx/configuration,arbrandes/edx-configuration,arbrandes/edx-configuration,EDUlib/configuration,mitodl/configuration,edx/configuration,arbrandes/edx-configuration,stvstnfrd/configuration,stvstnfrd/configuration,EDUlib/configuration