fix: (IAC-1362) Fix the V4M_ROUTING Validation Task

[jarpat]

Changes

Fix the V4M - ensure supported value for V4M_ROUTING task to that the intersect function has the correct input format.

Cause:

It looks like when we updated the ansible version from 9.1.0->8.6.0 this problem started appearing. That version bump causes the ansible-core version to go from 2.15->2.16. Looking at the release notes for 2.16 it looks like there was a bug fix around set filters that changed its behavior. We are updating this function so we don't rely on its previous "bugged" behavior. https://github.com/ansible/ansible/blob/stable-2.16/changelogs/CHANGELOG-v2.16.rst#v2-16-0

From CHANGELOG:

• Set filters intersect, difference, symmetric_difference and union now always return a list, never a set. Previously, a set would be returned if the inputs were a hashable type such as str, instead of a collection, such as a list or tuple.
• Set filters intersect, difference, symmetric_difference and union now use set operations when the given items are hashable. Previously, list operations were performed unless the inputs were a hashable type such as str, instead of a collection, such as a list or tuple.

Example of behavior: ansible-core 2.15

ansible.builtin.debug: # working bugged behavior
  msg: '{{ ["host-based", "path-based"] | intersect(V4M_ROUTING) }}'
["host-based"] 

ansible.builtin.debug: # checking backwards compat
  msg: '{{ ["host-based", "path-based", "a"] | intersect([V4M_ROUTING]) }}'
["host-based"]  

ansible-core 2.16

ansible.builtin.debug: # causing our issue
  msg: '{{ ["host-based", "path-based",] | intersect(V4M_ROUTING) }}'
[]    

ansible.builtin.debug: # causing our issue
  msg: '{{ ["host-based", "path-based", "a"] | intersect(V4M_ROUTING) }}'
["a"]    

ansible.builtin.debug: # fix as list
  msg: '{{ ["host-based", "path-based", "a"] | intersect([V4M_ROUTING]) }}'
["host-based"]

Tests

Scenario	Provider	kubernetes_version	order	cadence	notes
1	GCP	v1.27.10-gke.1152000	***	fast:2020	logging,monitoring,viya-monitoring