agent-platform release v4.140.0

Added

• (substrate) Select Substrate 1.12, the Organizations’ credentials by label in #1053 by @fiunchinho
• (agent-manager) The skills credential under the tenant-credential- prefix in #1065 by @teemow

Changed

• Align files according to platform standards in #1063 by @giantswarm-align-files[bot]

Fixed

• (connectivity) Open the egress gateway to the world on every TCP port in #1062 by @teemow

Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.139.0...v4.140.0

Proven

• Substrate 1.11.4 → 1.12.0 step: agentlab substrate-step-test --to 1.12.0 from 4.139.0 with the drain case on, all 8 stages pass: a suspended conversation resumes during the drain with its earlier turns, its volume file intact, and the golden is kept in layout 2 (details).