Is there an alternative to the `--allow-pull-request` option to use secrets in a pull request event?

I tried to encrypt secrets with the encrypt command of drone cli.
However, I found that I couldn’t use encrypted secrets in the pull request event.

Looking at the help with the -h option, I found that the --allow-pull-request option can also be used to read secrets in a pull request event.

However, the --allow-pull-request option also didn’t work.

Looking at the above page, I read that the --allow-pull-request option is not working now.

Is there an alternative to the --allow-pull-request option to use secrets in a pull request event?

I’m using the OSS edition, so I can’t set secrets from the UI.

Drone version: v2.0.6
Drone CLI version: v1.2.4