What is the purpose of this PR / why it is needed?

With the isolate action, it is possible to block all inbound/outbound traffic to the host except for the loopback address and the
list of allowed IP addresses specified in the action parameter. For example, the below snippet defines an isolate action, that will block all incoming/outbound network traffic except for the 172.17.0.4 and 8.8.8.8 IP addresses, both remote and local destinations.

action:
- name: isolate
  whitelist:
    - 172.17.0.4
    - 8.8.8.8

What type of change does this PR introduce?

Uncomment one or more /kind <> lines:

/kind feature (non-breaking change which adds functionality)

/kind bug-fix (non-breaking change which fixes an issue)

/kind refactor (non-breaking change that restructures the code, while not changing the original functionality)

/kind breaking (fix or feature that would cause existing functionality to not work as expected

/kind cleanup

/kind improvement

/kind design

/kind documentation

/kind other (change that doesn't pertain to any of the above categories)

Any specific area of the project related to this PR?

Uncomment one or more /area <> lines:

/area instrumentation

/area telemetry

/area rule-engine

/area filters

/area yara

/area event

/area captures

/area alertsenders

/area outputs

/area rules

/area filaments

/area config

/area cli

/area tests

/area ci

/area build

/area docs

/area deps

/area other

Special notes for the reviewer

Does this PR introduce a user-facing change?

This PR brings a new feature that needs to be properly documented and communicated to the final users.