Bump deps (#1885)

```
* use go 1.17 semantics in go.mod
* pin tonistiigi/fsutil dep to match docker/docker's dep
go get -u ./...
go mod vendor
```

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

@@ -2,44 +2,59 @@
 
 [![PkgGoDev](https://pkg.go.dev/badge/github.com/cilium/ebpf)](https://pkg.go.dev/github.com/cilium/ebpf)
 
+![HoneyGopher](.github/images/cilium-ebpf.png)
+
 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.
 
+The library is maintained by [Cloudflare](https://www.cloudflare.com) and
+[Cilium](https://www.cilium.io).
+
+See [ebpf.io](https://ebpf.io) for other projects from the eBPF ecosystem.
+
+## Getting Started
+
+A small collection of Go and eBPF programs that serve as examples for building
+your own tools can be found under [examples/](examples/).
+
+Contributions are highly encouraged, as they highlight certain use cases of
+eBPF and the library, and help shape the future of the project.
+
+## Getting Help
+
+Please
+[join](https://ebpf.io/slack) the
+[#ebpf-go](https://cilium.slack.com/messages/ebpf-go) channel on Slack if you
+have questions regarding the library.
+
+## Packages
+
+This library includes the following packages: 
+
 * [asm](https://pkg.go.dev/github.com/cilium/ebpf/asm) contains a basic
-  assembler
+  assembler, allowing you to write eBPF assembly instructions directly
+  within your Go code. (You don't need to use this if you prefer to write your eBPF program in C.)
+* [cmd/bpf2go](https://pkg.go.dev/github.com/cilium/ebpf/cmd/bpf2go) allows
+  compiling and embedding eBPF programs written in C within Go code. As well as
+  compiling the C code, it auto-generates Go code for loading and manipulating
+  the eBPF program and map objects. 
 * [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.
+* [ringbuf](https://pkg.go.dev/github.com/cilium/ebpf/ringbuf) allows reading from a
+  `BPF_MAP_TYPE_RINGBUF` map
+* [features](https://pkg.go.dev/github.com/cilium/ebpf/features) implements the equivalent
+  of `bpftool feature probe` for discovering BPF-related kernel features using native Go.
+* [rlimit](https://pkg.go.dev/github.com/cilium/ebpf/rlimit) provides a convenient API to lift
+  the `RLIMIT_MEMLOCK` constraint on kernels before 5.11.
 
 ## 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)
+* Linux >= 4.4. CI is run against LTS releases.
 
 ## Regenerating Testdata
 
@@ -47,8 +62,15 @@ 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.
 
+It is possible to regenerate data using Podman by overriding the `CONTAINER_*`
+variables: `CONTAINER_ENGINE=podman CONTAINER_RUN_ARGS= make`.
+
 The toolchain image build files are kept in [testdata/docker/](testdata/docker/).
 
 ## License
 
 MIT
+
+### eBPF Gopher
+
+The eBPF honeygopher is based on the Go gopher designed by Renee French.