Adjust Gainsight configuration

- replace Gainsight with sf-reporter image
- add Salesforce credentials
- remove unused params
- remove csv mount

Related-PROD: PROD-34801
(cherry-picked from I46358acee9c3167795a4d2393041fd3875cd2e94)

Change-Id: I1972a8a88ced719ba53462e60d34d89f3368faa1
5 files changed