fix(github): use share API URL for action links

[offlinehacker]

What does this PR do?

Fixes github action to use share URL from share API instead of hard coded one.

How did you verify your code works?

I tested github action in this repo: https://github.com/offlinehacker/oc-action-test

Fixes https://github.com/anomalyco/opencode/issues/9209