[turbolizer] Update rollup config

Change-Id: I09cb1ea773c84891cefc54e8bc016b5b201280bd
Bug: v8:7327

NOTRY=true

Change-Id: I09cb1ea773c84891cefc54e8bc016b5b201280bd
Reviewed-on: https://chromium-review.googlesource.com/1227973Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56020}

tools/turbolizer/rollup.config.js

@@ -6,8 +6,7 @@ import typescript from 'rollup-plugin-typescript2';
 import node from 'rollup-plugin-node-resolve';
 
 export default {
-  entry: "src/turbo-visualizer.ts",
-  format: "iife",
+  input: "src/turbo-visualizer.ts",
   plugins: [node(), typescript({abortOnError:false})],
-  dest: "build/turbolizer.js"
+  output: {file: "build/turbolizer.js", format: "iife", sourcemap: true}
 };