feat(libsinsp/container_engine): proper containerd support #2123

Job	Run time
build-test-e2e-amd64 😇 (bundled_deps)	15m 9s
build-test-e2e-arm64 😇 (bundled_deps)	34m 5s
test-e2e-amd64-kmod 😇 (bundled_deps)	9m 32s
test-e2e-amd64-bpf 😇 (bundled_deps)	11m 22s
test-e2e-amd64-modern-bpf 😇 (bundled_deps)	10m 50s
test-e2e-arm64-kmod 😇 (bundled_deps)	18m 8s
test-e2e-arm64-bpf 😇 (bundled_deps)	6h 0m 12s
test-e2e-arm64-modern-bpf 😇 (bundled_deps)	6h 0m 12s
	13h 39m 30s

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