Updates deprecated property

.vscode/launch.json

@@ -10,7 +10,7 @@
             "args": ["--extensionDevelopmentPath=${workspaceRoot}" ],
             "stopOnEntry": false,
             "sourceMaps": true,
-            "outDir": "${workspaceRoot}/out/src",
+            "outFiles": ["${workspaceRoot}/out/src/**/*.js"],
             "preLaunchTask": "compile"
         },
         {
@@ -21,7 +21,7 @@
             "args": ["--extensionDevelopmentPath=${workspaceRoot}", "--extensionTestsPath=${workspaceRoot}/out/test" ],
             "stopOnEntry": false,
             "sourceMaps": true,
-            "outDir": "${workspaceRoot}/out/test",
+            "outFiles": ["${workspaceRoot}/out/test/**/*.js"],
             "preLaunchTask": "compile"
         }
     ]