Add request dependency to correct package.json (#4306)

- This was needed in mssql extension, not the main package.json

extensions/mssql/package.json

@@ -18,19 +18,20 @@
     "update-grammar": "node ../../build/npm/update-grammar.js Microsoft/vscode-mssql syntaxes/SQL.plist ./syntaxes/sql.tmLanguage.json"
   },
   "dependencies": {
+    "buffer-stream-reader": "^0.1.1",
     "bytes": "^3.1.0",
     "clipboardy": "^1.2.3",
     "dataprotocol-client": "github:Microsoft/sqlops-dataprotocolclient#0.2.15",
     "error-ex": "^1.3.2",
     "figures": "^2.0.0",
     "opener": "^1.4.3",
+    "request": "^2.88.0",
     "request-promise": "^4.2.2",
     "service-downloader": "github:anthonydresser/service-downloader#0.1.5",
     "stream-meter": "^1.0.4",
     "uri-js": "^4.2.2",
     "vscode-extension-telemetry": "^0.0.15",
-    "vscode-nls": "^4.0.0",
-    "buffer-stream-reader": "^0.1.1"
+    "vscode-nls": "^4.0.0"
   },
   "devDependencies": {},
   "contributes": {