Update dependency aws-sdk to 2.1387.x

Author: renovate[bot]

package.json

@@ -6,7 +6,7 @@
     "test": "tape test/archive.test.js | faucet"
   },
   "dependencies": {
-    "aws-sdk": "2.814.x",
+    "aws-sdk": "2.1387.x",
     "dotenv": "0.5.x",
     "minimist": "1.2.x",
     "proxy-agent": "^2.0.0",