[feature] Implement sys.getEnv() function to return local environment variables

[Milkshak3s]

Is your feature request related to a problem? Please describe.
Production systems often expose secrets, or the location of secrets as environment variables. Viewing these variables is useful for identifying the system we're executing on, or for locating secrets for priv esc.

Describe the solution you'd like
A functions like sys.getEnv() that returns a dict of keys -> values of env vars:

{
  "SOME_VARIABLE": "SOME VALUE"
}

Describe alternatives you've considered
We could rely on sys.exec executing env or similar, though this would make our actions more visible in a process tree.
(Right? Plz correct me here if wrong)

Additional context
Add any other context or screenshots about the feature request here.

[hulto]

Good idea!
Maybe sys.get_env() for naming consistency.
Would be nice to have an optional parameter "key: string" to get just one env var if it exists (empty if it doesn't)