Add support for open_by_handle_at syscall

[araujof]

Indicate project collector

Describe the feature you'd like The Falco libs have recently added support for open_by_handle_at. It needs to be mapped to the family of open operations in libSysFlow.

Reference: https://github.com/falcosecurity/libs/commit/4a3376381356a560e97e6256fb5b4a841766adf5