History of Retention::default 2 changes

In crates/hub/src/config.rs, lines 355–357 on cancel-landed-runs. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 355,357:crates/hub/src/config.rs.