Link PRs to issues for non-default branches about gh-action-lt-backlog

[pavel-mikula-sonarsource]

Bad news, while I can query the connections, there's no mutation in Graph QL that would allow adding a new one.

I've asked GH about that here:
https://github.com/orgs/community/discussions/73325

Graph QL for future reference:

ProcessRequest("
    query {
        repository(name: ""GitHubActionPlayground"", owner: ""pavel-mikula-sonarsource"") {
            pullRequest(number: 67) {
                id
                closingIssuesReferences (first: 50) {
                    nodes {
                      id
                      body
                      number
                      title
                    }
                }
            }
        }
    }")

[pavel-mikula-sonarsource]

Not relevant anymore for v2