agent-platform release v4.109.1-rc.3

Changed

• (deps) Update agentgateway line to v2.2.2 in #789 by @renovate[bot]
• (deps) Update gsoci.azurecr.io/giantswarm/alpine-openssl docker tag to v3.5.9 in #797 by @renovate[bot]

Fixed

• (substrate) Follow stable releases also under gitops.prereleases in #796 by @teemow

Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.109.0...v4.109.1-rc.3