agent-platform release v4.107.0

A serving preset’s ConfigMap names the chart version that published it (giantswarm/model-manager#216). agent-platform-serving-preset-<name> carries the annotation agent-platform.giantswarm.io/chart-version with the connectivity chart’s version verbatim (Helm’s + build metadata included, which the helm.sh/chart label cannot carry), and model-manager reports it as the preset’s chartVersion, so a benchmark records the release that shipped its preset instead of a hand-typed one. make verify-serving-slice asserts the annotation on every preset ConfigMap; verify-gpu-pool leaves it out of the GOLDEN_REF comparison, as it does the image references.