fix tests

packages/inbound-email-handler/mocha-config.json

@@ -1,6 +1,5 @@
 {
     "extension": ["ts"],
     "spec": "test/**/*.test.ts",
-    "require": ["test/global-teardown.ts"],
     "timeout": 10000
   }

packages/inbound-email-handler/test/global-teardown.ts

@@ -1,5 +0,0 @@
-import { redisDataSource } from '../src/redis_data_source'
-
-export const mochaGlobalTeardown = async () => {
-  await redisDataSource.shutdown()
-}