Currently, there is a 3 connector limit across workspaces within a team.
This can functionally be bypassed with manual API requests, including Fetch API.
Instead, consider applying other usage limitations instead. Limiting connectors discourages me from building more solutions in the team space, rather than encouraging innovation and creativity.
Limited connectors are also a hindrance when troubleshooting authentication or connection issues: some situations would be best to sort out with a new connector for troubleshooting, rather than overriding the authentication on an existing connector.