Find and remove old files only from current dir

Avoid to find files in subdirectory

github/check.gitea.update

@@ -238,7 +238,7 @@ The current version (${RED}${gitea_current_version}${COLOR_DEBUG}) is up-to-date
 		debug_message "Test version − \
 Ensure to remove temp file and any previous and unused releases."
 		rm --force -- "${gitea_new_version_file}"
-		find "${gitea_bin_dir}" -type f -iname "gitea.to.upgrade*" -delete
+		find "${gitea_bin_dir}" -maxdepth 1 -type f -iname "gitea.to.upgrade*" -delete
 	fi
 	# }}}