ci: Parameterize test-validate-state

[jpayne3506]

Reason for Change:

To continue using make test-validate-state we need to parameterize the cni type. Adding CNI_TYPE enables us to use this for more then the default cilium, but also cniv1 and cniv2.

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• relevant PR labels added

Notes:
CNI_TYPE defaults to cilium, which matches the test/integration/load/load_test.go default for its -cni flag.
A majority of the uses of make test-validate-state are cilium focused and will not be affected by this change as the default remains the same.