ci: add conditional for specific repository in workflow

[takumin]

Check List

• Read CONTRIBUTING.md
  • Read OSS Contribution Guide
• All commits are signed
  • This repository enables Require signed commits, so all commits must be signed
• Avoid force push
• Do only one thing in one Pull Request
• Execute cmdx s to scaffold code
• Install and execute the package and confirm if the package works well

Motivation

The count-pkgs action always fails on fork repositories, so make sure it is the origin repository before running it.

see also: https://github.com/takumin/aqua-registry/actions/runs/12487355968

[suzuki-shunsuke]

We don't assume this workflow is run in fork repositories.
By default, GitHub Actions aren't run in fork repositories.

Workflows aren’t being run on this forked repository
Because this repository contained workflow files when it was forked, we have disabled them from running on this fork. Make sure you understand the configured workflows and their expected usage before enabling Actions on this repository.

[suzuki-shunsuke]

If you enable workflows by mistake, you can disable it from repository settings.

[takumin]

okey, I completely understand. Disable Actions on my fork repository.
Thanks for the reply! This PR will be closed.