Further restrict CSP for CodeEditor

Author: Zuoyuan Huang

patches/update-csp.diff

@@ -7,7 +7,7 @@ Index: sagemaker-code-editor/vscode/src/vs/server/node/webClientServer.ts
  			'worker-src \'self\' data: blob:;',
  			'style-src \'self\' \'unsafe-inline\';',
 -			'connect-src \'self\' ws: wss: https:;',
-+			'connect-src \'self\' ws: wss: https://main.vscode-cdn.net http://localhost:* https://localhost:* https://login.microsoftonline.com/ https://update.code.visualstudio.com https://*.vscode-unpkg.net/ https://default.exp-tas.com/vscode/ab https://vscode-sync.trafficmanager.net https://vscode-sync-insiders.trafficmanager.net https://*.gallerycdn.vsassets.io https://marketplace.visualstudio.com https://*.blob.core.windows.net https://az764295.vo.msecnd.net  https://code.visualstudio.com https://*.gallery.vsassets.io https://*.rel.tunnels.api.visualstudio.com wss://*.rel.tunnels.api.visualstudio.com https://*.servicebus.windows.net/ https://vscode.blob.core.windows.net https://vscode.search.windows.net https://vsmarketplacebadges.dev https://vscode.download.prss.microsoft.com https://download.visualstudio.microsoft.com https://*.vscode-unpkg.net https://open-vsx.org;',
++			'connect-src \'self\' ws: wss: https://main.vscode-cdn.net http://localhost:* https://localhost:* https://login.microsoftonline.com/ https://update.code.visualstudio.com https://*.vscode-unpkg.net/ https://default.exp-tas.com/vscode/ab https://vscode-sync.trafficmanager.net https://vscode-sync-insiders.trafficmanager.net https://*.gallerycdn.vsassets.io https://marketplace.visualstudio.com https://az764295.vo.msecnd.net  https://code.visualstudio.com https://*.gallery.vsassets.io https://*.rel.tunnels.api.visualstudio.com wss://*.rel.tunnels.api.visualstudio.com https://*.servicebus.windows.net/ https://vscode.blob.core.windows.net https://vscode.search.windows.net https://vsmarketplacebadges.dev https://vscode.download.prss.microsoft.com https://download.visualstudio.microsoft.com https://*.vscode-unpkg.net https://open-vsx.org;',
  			'font-src \'self\' blob:;',
  			'manifest-src \'self\';'
  		].join(' ');