agent-platform release v4.149.0

Added

• Substrate 1.13 routes the Google access-token class to the plugin in #1059 by @QuentinBisson
• A codex ModelConfig on a ChatGPT subscription login (credentialType chatgptOAuth) in #1128 by @teemow
• (kagent) Kagent 1.18, no caller bearer to muster from a workspace in #1131 by @teemow

Changed

• (deps) Update gsoci.azurecr.io/giantswarm/agent-manager docker tag to v2.6.1 in #1105 by @renovate[bot]
• (deps) Update gsoci.azurecr.io/giantswarm/agent-manager docker tag to v2.6.3 in #1130 by @renovate[bot]
• Align files according to platform standards in #1132 by @giantswarm-align-files[bot]
• (deps) Update gsoci.azurecr.io/giantswarm/agent-manager docker tag to v2.6.4 in #1133 by @renovate[bot]
• (deps) Update agentgateway line to v2.4.2 in #1134 by @renovate[bot]

Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.148.0...v4.149.0