fix(build): Checkout origin/latest

Getting  when checking out the
other way

ref #455

Author: Kent C. Dodds

scripts/publish-latest.sh

@@ -11,8 +11,7 @@ echo "setting remote"
 git remote set-url origin https://formly-bot:$BOT_GH_TOKEN@github.com/formly-js/angular-formly.git >/dev/null 2>/dev/null
 
 echo "checking out latest"
-git fetch
-git checkout latest
+git checkout -t -b latest origin/latest
 
 echo "merging master"
 git merge origin/master -m "master merge" -X theirs