Fix build script error and bump devtools version

Summary: To get ready for publishing a new version internally, also fixes an error that prevented the build script from completing

Reviewed By: andreqi

Differential Revision: D61029369

fbshipit-source-id: a1047ed34981d8ccf432f30a53f69c9d2b6eee49

Author: tyao1

shells/browser/chrome/manifest.json

@@ -2,8 +2,8 @@
   "manifest_version": 2,
   "name": "Relay Developer Tools",
   "description": "Adds Relay debugging tools to the Chrome Developer Tools.",
-  "version": "0.9.16",
-  "version_name": "0.9.16",
+  "version": "0.9.17",
+  "version_name": "0.9.17",
   "update_url": "https://www.internalfb.com/intern/browser_extensions/chrome/update.xml",
   "minimum_chrome_version": "78",
   "icons": {

shells/browser/shared/build.js

@@ -96,8 +96,8 @@ const postProcess = async (tempPath, destinationPath) => {
   const packedDestPath = join(destinationPath, 'RelayDevTools.zip');
   const unpackedDestPath = join(destinationPath, 'unpacked');
 
-  await move(unpackedSourcePath, unpackedDestPath); // Copy built files to destination
-  await move(packedSourcePath, packedDestPath); // Copy built files to destination
+  await move(unpackedSourcePath, unpackedDestPath, { overwrite: true }); // Copy built files to destination
+  await move(packedSourcePath, packedDestPath, { overwrite: true }); // Copy built files to destination
   await remove(tempPath); // Clean up temp directory and files
 };