There is an internal requirement to update node to v12 across all repos by Nov 15 and this update is failing for course-discovery due to our version of node-sass (AFAWK this is the only dependency breakage). A quick attempt to make that change failed and according to Diana, "it seems like new versions of node-sass need more write permissions on the node_modules directory than previously needed. there might need to be some fiddling with the docker configuration to ensure that it works". There is some info on the write permissions here.
configuration PR to upgrade discovery's version of node: https://github.com/edx/configuration/pull/5471/files
upgrade the disco node-sass version
get confirmation from Platform/Diana that the node v12 PR succeeds