update default and basic gc control to use free and max storage #5093

Job	Run time
govulncheck	1m 7s
prepare	4s
binaries (darwin/amd64)	1m 0s
binaries (darwin/arm64)	1m 10s
binaries (linux/amd64)	2m 14s
binaries (linux/arm/v7)	2m 15s
binaries (linux/arm64)	2m 5s
binaries (linux/s390x)	2m 6s
binaries (linux/ppc64le)	2m 5s
binaries (linux/riscv64)	1m 58s
binaries (windows/amd64)	1m 46s
binaries (windows/arm64)	1m 39s
test / prepare	2m 9s
test / run (containerd, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	12m 49s
test / run (containerd-rootless, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integr...	14m 24s
test / run (containerd-1.6, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	13m 0s
test / run (containerd-snapshotter-stargz, ./client ./cmd/buildctl ./worker/containerd ./solver ./fronte...	17m 55s
test / run (oci, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	14m 53s
test / run (oci-rootless, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, integration)	5m 57s
test / run (oci-rootless-slirp4netns-detachnetns, ./client ./cmd/buildctl ./worker/containerd ./solver ....	6m 5s
test / run (oci-snapshotter-stargz, ./client ./cmd/buildctl ./worker/containerd ./solver ./frontend, int...	7m 23s
test / run (./..., 1, integration gateway)	9m 16s
test / run (./client, containerd, nydus, integration)	12m 3s
test / run (./client, oci, nydus, integration)	10m 10s
test / run (./..., nydus, 1, integration)	9m 1s
image	8m 42s
image (rootless)	8m 46s
release	8s
scout	0s
	2h 52m 10s

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