Changes to Retrieve projects

the response property items/pull_frequency became required for the status 200

the response property items/redirect_url became required for the status 200

the response property items/pull_frequency became optional for the status 200

the response property items/redirect_url became optional for the status 200

the response property items/pull_frequency became required for the status 200

the response property items/redirect_url became required for the status 200

the response property items/pull_frequency became optional for the status 200

the response property items/redirect_url became optional for the status 200

endpoint added