Show runs that are triggered from the merge commit of the PR in the PR tab

Due to the way we use modules (not versioned via the registry, but with relative paths in our monorepo), we have implemented our own github/spacelift integration that analyses the terraform dependency graph and triggers runs in stacks when modules change.

This works pretty good, but there is a downside that the PRs now don't show up in the PR section, so is difficult to find those runs in the UI.

The reason for the PRs no showing seems to be that e trigger them from the merge commit instead of the HEAD of the branch. This is a good practice to reduce unexpected changes when mergin to the main branch.

So my ask is, either make the run in the merge commit show in the PRs tab, or make possible through metadata to associate runs with PRs, so they show up in the UI.