Re-add removed params from V3 project API

lib/api/v3/projects.rb

@@ -25,6 +25,10 @@ module API
           optional :request_access_enabled, type: Boolean, desc: 'Allow users to request member access'
           optional :only_allow_merge_if_build_succeeds, type: Boolean, desc: 'Only allow to merge if builds succeed'
           optional :only_allow_merge_if_all_discussions_are_resolved, type: Boolean, desc: 'Only allow to merge if all discussions are resolved'
+
+          # EE-specific
+          optional :repository_storage, type: String, desc: 'Which storage shard the repository is on. Available only to admins'
+          optional :approvals_before_merge, type: Integer, desc: 'How many approvers should approve merge request by default'
         end
 
         def map_public_to_visibility_level(attrs)
@@ -287,7 +291,9 @@ module API
             :lfs_enabled, :public, :visibility_level, :public_builds,
             :request_access_enabled, :only_allow_merge_if_build_succeeds,
             :only_allow_merge_if_all_discussions_are_resolved, :path,
-            :default_branch
+            :default_branch,
+            ## EE-specific
+            :repository_storage, :approvals_before_merge
         end
         put ':id' do
           authorize_admin_project

spec/requests/api/v3/projects_spec.rb

@@ -1195,6 +1195,15 @@ describe API::V3::Projects, api: true do
         expect(json_response['request_access_enabled']).to eq(false)
       end
 
+      it 'updates approvals_before_merge' do
+        project_param = { approvals_before_merge: 3 }
+
+        put v3_api("/projects/#{project.id}", user), project_param
+
+        expect(response).to have_http_status(200)
+        expect(json_response['approvals_before_merge']).to eq(3)
+      end
+
       it 'updates path & name to existing path & name in different namespace' do
         project_param = { path: project4.path, name: project4.name }
         put v3_api("/projects/#{project3.id}", user), project_param