fix(auth-server): safely access metrics methods in redis

Author: sreecharan-desu

packages/fxa-auth-server/test/local/redis.js

@@ -7,9 +7,13 @@
 const { assert } = require('chai');
 const AccessToken = require('../../lib/oauth/db/accessToken');
 const RefreshTokenMetadata = require('../../lib/oauth/db/refreshTokenMetadata');
+const { Container } = require('typedi');
+const { StatsD } = require('hot-shots');
 const config = require('../../config').default.getProperties();
 const mocks = require('../mocks');
 
+Container.set(StatsD, mocks.mockStatsd());
+
 const recordLimit = 20;
 const prefix = 'test:';
 const maxttl = 1337;