Bitbucket Integration: app requires development mode

Hey there, it appears that the Sentry ↔︎ Bitbucket integration has not been added to the Atlassian Marketplace, and we're required to enable Bitbucket development mode to install via a URL. Switch located here: `https://bitbucket.org/WORKSPACE_NAME/workspace/settings/addon-management/`. This step is not mentioned [in the documentation for the Bitbucket integration](https://docs.sentry.io/product/integrations/bitbucket/), so I wasn't feeling confident that things were safe during the installation process. As well, we'd prefer to keep this option disabled for our Bitbucket account.

I flipped the development mode toggle on to perform the install and then flipped it off afterward. Integration seems to still be working. Looks like we'll need to flip the toggle again if we need to update the integration. Would it update automatically if we left development mode on? If there's no plan to publish to the Atlassian Marketplace, I think it would help other customers to add this info to the docs. Thanks!