Support `perf_event_open` to enable use of `ddprof`

### Description

`ddprof` is DataDog's profiler, [which relies on `perf_event_open`](https://docs.datadoghq.com/profiler/profiler_troubleshooting/ddprof/#error-error-calling-perfopen-on-watcher). gvisor does not handle `perf_event_open`.

I use gvisor to satisfy security requirements for various workloads, some of which are quite heavy with resources. I recently tried to use `ddprof` to collect performance profiles but was unable to run it because gvisor does not handle `perf_event_open`.

### Is this feature related to a specific bug?

_No response_

### Do you have a specific solution in mind?

I surmise that implementing this syscall is not straightforward. If implementation is infeasible, is there a way to pass `perf_event_open` syscalls through to the kernel, perhaps by modifying seccomp rules?

Thanks!