Fixing CI build by changing file permissions

.gitignore

@@ -25,8 +25,9 @@ bld/
 [Oo]bj/
 [Ll]og/
 
-# .Net CLI restore location
+# .Net CLI restore location and packages
 .dotnet/
+.packages/
 
 # Visual Studio 2015/2017 cache/options directory
 .vs/

eng/common/CIBuild.cmd

 @echo off
-powershell -ExecutionPolicy ByPass -NoProfile -command "& """%~dp0Build.ps1""" -restore -build -test -sign -pack -publish -ci %*"
+powershell -ExecutionPolicy ByPass -NoProfile -command "& """%~dp0Build.ps1""" -restore -build -test -pack -publish -ci %*"
 exit /b %ErrorLevel%