Various backup fixes

package.json

@@ -17,7 +17,7 @@
     "@google-cloud/dns": "^0.6.2",
     "@sindresorhus/df": "^2.1.0",
     "async": "^2.5.0",
-    "aws-sdk": "^2.97.0",
+    "aws-sdk": "^2.132.0",
     "body-parser": "^1.17.2",
     "cloudron-manifestformat": "^2.9.0",
     "connect-ensure-login": "^0.1.1",
@@ -91,7 +91,7 @@
     "istanbul": "*",
     "js2xmlparser": "^1.0.0",
     "mocha": "*",
-    "mock-aws-s3": "^2.4.0",
+    "mock-aws-s3": "git+https://github.com/cloudron-io/mock-aws-s3.git",
     "nock": "^9.0.14",
     "node-sass": "^3.13.1",
     "readdirp": "https://registry.npmjs.org/readdirp/-/readdirp-2.1.0.tgz",