pf tests: sync a state with an rtableid that doesn't exist

Create a state with an rtableid (i.e. fib) that doesn't exist on the receiving
side. This used to not be handled, and could provoke panics. Create such a
situation to ensure we still don't panic.

PR: 287981
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")