Add exception for git pull

Make the bat-extras folder safe to pull when root doesn't own it

That way we can automate pulling the latest updates on restart

root/etc/s6-overlay/s6-rc.d/init-mod-code-server-bat-install/run

@@ -45,6 +45,7 @@ fi
 
 if [ -d /config/.bat-extras ]; then
     echo 'Bat-extras already cloned, updating'
+    git config --global --add safe.directory /config/.bat-extras
     git -C /config/.bat-extras pull
 else
     echo 'Cloning bat-extras repo'