Updating ruby for Travis

[slemrmartin]

• [x] https://github.com/RedHatInsights/topological_inventory-persister/pull/51
• [x] https://github.com/RedHatInsights/topological_inventory-api/pull/292
• [x] https://github.com/RedHatInsights/topological_inventory-core/pull/184
• [x] https://github.com/RedHatInsights/topological_inventory-api-client-ruby/pull/30
• [x] https://github.com/RedHatInsights/topological_inventory-amazon/pull/58
• [x] https://github.com/RedHatInsights/topological_inventory-ansible_tower/pull/76
• [x] https://github.com/RedHatInsights/topological_inventory-azure/pull/20
• [x] https://github.com/RedHatInsights/topological_inventory-ingress_api/pull/83
• [x] https://github.com/RedHatInsights/topological_inventory-ingress_api-client-ruby/pull/64
• [x] https://github.com/RedHatInsights/topological_inventory-openshift/pull/118
• [x] https://github.com/RedHatInsights/topological_inventory-providers-common/pull/14
• [x] https://github.com/RedHatInsights/topological_inventory-satellite/pull/19
• [x] https://github.com/RedHatInsights/topological_inventory-sync/pull/61
• [x] https://github.com/RedHatInsights/sources-api/pull/202
• [x] https://github.com/RedHatInsights/sources-api-client-ruby/pull/17