* Reapply "[web] Promisify MetricsEmailController and InstitutionHubsController …"
This reverts commit ea14df1395f1dc2fa7d41fc7837849f9686425b5.
* Fix changes to node-fetch: `statusCode` -> `status` (!!)
* Update test
* Handle no-content without throwing (!)
Avoid error `Unexpected end of JSON input` when doing `response.json()` on an empty response when status is 204
Related: https://github.com/node-fetch/node-fetch/issues/165
* Also return `204` when no data in departments_data and roles_data
* Revert "Handle no-content without throwing (!)", and return null instead
This reverts commits 3baa779f7a9e64804e54a276faf865ab9252f336 and 51507a3d763d7006c8b01414a7c79bd3f3b6948b.
* Update tests: `assert_nil`
* Fixup: Update tests: assert null
* Use `fetchJSON` in Institution.fetchV1Data
* Proxy errors from server without throwing 500
GitOrigin-RevId: 9c13e293f3fed3abd2accddd1a9060ed02b96ba2
