Outcome scan: jaah

Outcome scan: read the integration branch's new commits, the PRs merged since the last scan and the CI results of watched heads, and report them. Filed by the control plane (`app/outcome_ledger/scan.py::file_scan`).

outcome scan: checks on 360b16daad4d skipped (jaah-forge: cannot reach api.github.com: _ssl.c:1064: The handshake operation timed out)