Kargo v1.9.15

Changes

2 maintenance lines (dependency bumps, CI, tests, docs)

Bump korthout/backport-action from 4.6.1 to 4.7.0maintenance
Bump Go to 1.27.2, golang.org/x/net to v0.60.0, and grpc_health_probe to v0.4.59maintenance

2 lines2 maintenancetyped from the source notes

context

The change list is the project's own release notes, sorted into change types by fixed rules. See the methodology.