Correct permission and branch name (#1845)

* Permissions on create_gh_pr script

* Permissions on update_version script

* Branch name fix

scripts/create_gh_pr

@@ -5,14 +5,14 @@ git config user.name $_GITHUB_USER
 git config user.email $_GITHUB_EMAIL
 git remote set-url origin https://$_GITHUB_USER:$(cat token.txt)@github.com/dataform-co/dataform.git
 
+echo "Update version..."
+./scripts/update_version
+
 export git_branch_name=npm_veriosn_$(cat version.bzl | grep DF_VERSION | awk '{ print $3 }' | sed "s/\"//g")
 
 echo "Create new branch $git_branch_name..."
 git checkout -b $git_branch_name
 
-echo "Update version..."
-./scripts/update_version
-
 git add version.bzl
 git commit -m "Update the npm package version"