Fix JSON schemas related issues

Signed-off-by: Rémy Coutable <remy@rymai.me>

.flayignore

@@ -19,3 +19,4 @@ app/models/project_services/kubernetes_service.rb
 ee/db/**/*
 ee/app/serializers/ee/merge_request_widget_entity.rb
 ee/lib/ee/gitlab/ldap/sync/admin_users.rb
+ee/spec/**/*

ee/spec/fixtures/api/schemas/environment.json

@@ -32,7 +32,7 @@
         "last_deployment": {
             "oneOf": [
                 {
-                    "$ref": "deployment.json"
+                    "$ref": "../../../../../spec/fixtures/api/schemas/deployment.json"
                 },
                 {
                     "type": ["null"]

spec/controllers/projects/environments_controller_spec.rb

@@ -60,7 +60,7 @@ describe Projects::EnvironmentsController do
         end
 
         it 'responds with matching schema' do
-          expect(response).to match_response_schema('environments')
+          expect(response).to match_response_schema('environments', dir: 'ee')
         end
 
         it 'responds with a payload describing available environments' do