test: run tests with fuse-overlayfs snapshotter #3876
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With containerd, this requires running a snapshotter plugin in the same rootless namespace as containerd and buildkitd. To do this, we need to run rootlesskit with a dummy
sleep
process and then run all needed processes in the appropriate order using nsenter:This commit prepare the use of overlayfs optimizations for fuse-overlayfs related to #3718.