fix(cli-repl): add aws4 as dependency to cli-repl to enable AWS auth (#718)

Author: rose-m

packages/service-provider-server/package-lock.json

@@ -42,6 +42,7 @@
     "@mongosh/service-provider-core": "0.0.0-dev.0",
     "@types/sinon": "^7.5.1",
     "@types/sinon-chai": "^3.2.3",
+    "aws4": "^1.11.0",
     "mongodb": "4.0.0-beta.1",
     "saslprep": "mongodb-js/saslprep#v1.0.4"
   },