ci(release): skip git status check in prep phase

tools/release

@@ -56,11 +56,13 @@ _check_cli() {
 }
 
 _check_git() {
+  $opt_pre || (
     # ensure that changes have been committed
     if [[ -n $(git status . -s) ]]; then
       echo "> Abort: Commit the staged files first, and then run this tool again."
       exit 1
     fi
+  )
 
   $opt_pkg || (
     if [[ "$(git branch --show-current)" != "$RELEASE_BRANCH" ]]; then