Deploy pipeline failing on PRs opened from forks

[szaboopeeter]

Bug report

Describe the bug

The deploy pipeline is failing on PRs opened from forks, because it cannot access API key (secrets are not shared with forks).

Is there a way around it? Or alternatively should we remove this workflow from PRs and have it only on main branch? What's the use-case for publishing from PRs?

To Reproduce

1. Fork this repo
2. Create a PR with any change
3. Wait for deploy pipeline results - for example: https://github.com/agoda-com/net-loadbalancing/actions/runs/3443243315/jobs/5745853755

Expected behavior

Pipeline should be green.

Screenshots

Pipeline is red.