chore: remove redundant safe-directory configuration

This has been resolved in the [checkout](actions/checkout#770) action and would already be set by default.

start.sh

@@ -24,6 +24,5 @@ fi
 cd ${INPUT_DIRECTORY}
 
 remote_repo="${INPUT_GITHUB_URL_PROTOCOL}//${GITHUB_ACTOR}:${INPUT_GITHUB_TOKEN}@${INPUT_GITHUB_URL}/${REPOSITORY}.git"
-git config --local --add safe.directory ${INPUT_DIRECTORY}
 
 git push "${remote_repo}" HEAD:${INPUT_BRANCH} --follow-tags $_FORCE_OPTION $_TAGS;