Your workflow is using a version of actions/cache that is scheduled for deprecation, actions/cache@v2. Please update your workflow to use the latest version of actions/cache to avoid interruptions. Learn more: https://github.blog/changelog/2024-09-16-notice-of-upcoming-deprecations-and-changes-in-github-actions-services/

Unexpected input(s) 'experimental-otp', valid inputs are ['github-token', 'otp-version', 'elixir-version', 'gleam-version', 'install-hex', 'install-rebar', 'rebar3-version', 'version-type', 'disable_problem_matchers', 'version-file', 'hexpm-mirrors']

in order to compile .yrl files, you must add "compilers: [:yecc] ++ Mix.compilers()" to the "def project" section of erlex's mix.exs