[release-1.3] Increase default FlowGCTimeout to 1h to prevent premature GC#2154

kfswain merged 1 commit intokubernetes-sigs:release-1.3kubernetes-sigs/gateway-api-inference-extension:release-1.3from

k8s-infra-cherrypick-robot:cherry-pick-2143-to-release-1.3k8s-infra-cherrypick-robot/gateway-api-inference-extension:cherry-pick-2143-to-release-1.3Copy head branch name to clipboard