Update containerd vendors to tags

Signed-off-by: Derek McGowan <derek@mcg.dev>

vendor/github.com/cilium/ebpf/README.md

@@ -0,0 +1,54 @@
+# eBPF
+
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/cilium/ebpf)](https://pkg.go.dev/github.com/cilium/ebpf)
+
+eBPF is a pure Go library that provides utilities for loading, compiling, and
+debugging eBPF programs. It has minimal external dependencies and is intended to
+be used in long running processes.
+
+* [asm](https://pkg.go.dev/github.com/cilium/ebpf/asm) contains a basic
+  assembler
+* [link](https://pkg.go.dev/github.com/cilium/ebpf/link) allows attaching eBPF
+  to various hooks
+* [perf](https://pkg.go.dev/github.com/cilium/ebpf/perf) allows reading from a
+  `PERF_EVENT_ARRAY`
+* [cmd/bpf2go](https://pkg.go.dev/github.com/cilium/ebpf/cmd/bpf2go) allows
+  embedding eBPF in Go
+
+The library is maintained by [Cloudflare](https://www.cloudflare.com) and
+[Cilium](https://www.cilium.io). Feel free to
+[join](https://cilium.herokuapp.com/) the
+[#libbpf-go](https://cilium.slack.com/messages/libbpf-go) channel on Slack.
+
+## Current status
+
+The package is production ready, but **the API is explicitly unstable right
+now**. Expect to update your code if you want to follow along.
+
+## Requirements
+
+* A version of Go that is [supported by
+  upstream](https://golang.org/doc/devel/release.html#policy)
+* Linux 4.9, 4.19 or 5.4 (versions in-between should work, but are not tested)
+
+## Useful resources
+
+* [eBPF.io](https://ebpf.io) (recommended)
+* [Cilium eBPF documentation](https://docs.cilium.io/en/latest/bpf/#bpf-guide)
+  (recommended)
+* [Linux documentation on
+  BPF](https://www.kernel.org/doc/html/latest/networking/filter.html)
+* [eBPF features by Linux
+  version](https://github.com/iovisor/bcc/blob/master/docs/kernel-versions.md)
+
+## Regenerating Testdata
+
+Run `make` in the root of this repository to rebuild testdata in all
+subpackages. This requires Docker, as it relies on a standardized build
+environment to keep the build output stable.
+
+The toolchain image build files are kept in [testdata/docker/](testdata/docker/).
+
+## License
+
+MIT