agent-platform release v4.7.17

Fixed

• (kagent) Re-pin the line to v0.11.0-gs.4 — the A2A gateway fails a task whose dispatch to the runtime fails instead of leaving it submitted in #404 by @teemow

Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.7.16...v4.7.17