GitHub Integration Problem

### Environment SaaS (https://sentry.io/) ### Steps to Reproduce 1. Add GitHub integration to an organization and during the GitHub flow select only specific repositories. 2. Proceed happily. 3. Realize you have a new repository you want to grant Sentry access to; clicking Configure by the installation doesn't let you do that. Clicking Add Installation to go back through the same re-linkage results in a "We noticed you already integrated with GitHub! Do you want to connect an existing GitHub organization to this Sentry organization or connect a new one?" - if you select the already-connected organization, you are taken to an upgrade billing screen. ### Expected Result If re-selecting the same GitHub org, the user should be presumed to be asking to re-configure their existing install. ### Actual Result User was presumed to want to integrate with multiple GitHub orgs/installs, which wasn't the case. ### Product Area Settings - Repositories ### Link https://network-weather.sentry.io/settings/integrations/github/ ### DSN _No response_ ### Version _No response_