Fix spec

spec/requests/api/v3/files_spec.rb

@@ -153,7 +153,7 @@ describe API::V3::Files, api: true  do
       let!(:project) { create(:project_empty_repo, namespace: user.namespace ) }
 
       it "creates a new file in project repo" do
-        post api("/projects/#{project.id}/repository/files", user), valid_params
+        post v3_api("/projects/#{project.id}/repository/files", user), valid_params
 
         expect(response).to have_http_status(201)
         expect(json_response['file_path']).to eq('newfile.rb')