sfdx-actions#7 - update name of tarball

Author: daveespo

index.js

@@ -11,7 +11,7 @@ try {
 function installSFDX(){
   var download = 'wget https://developer.salesforce.com/media/salesforce-cli/sfdx/channels/stable/sfdx-linux-x64.tar.xz -P /tmp'
   var createDir = 'mkdir sfdx'
-  var unzip = 'tar xJf /tmp/sfdx-linux-amd64.tar.xz -C sfdx --strip-components 1'
+  var unzip = 'tar xJf /tmp/sfdx-linux-x64.tar.xz -C sfdx --strip-components 1'
   var install = 'echo "`pwd`/sfdx/bin" >> $GITHUB_PATH'
   var version = 'sfdx/bin/sfdx --version'
   exec(download+' && '+createDir+' && '+unzip+' && '+install+' && '+version, function(error, stdout, stderr){