fix for nghttp2_option_set_no_rfc9113_leading_and_trailing_ws_validation · acmesh-official/acme.sh@09b41aa

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/