Error: Unable to process command '::set-env name=ENV_VAR::***' successfully.
Error: The `set-env` command is disabled. Please upgrade to using Environment Files or opt into unsecure command
execution by setting the `ACTIONS_ALLOW_UNSECURE_COMMANDS` environment variable to `true`.
For more information see: https://github.blog/changelog/2020-10-01-github-actions-deprecating-set-env-and-add-path-commands/