Randomize resources in acceptance tests

[SierraJC]

Currently, acceptance tests use hard-coded resource names which can cause collisions when running tests against the acceptance test server, noticeable when testing multiple Terraform versions simultaneously.

Proposed Solution:

• Create helper functions that generate HCL test configurations with randomised resource attributes (mainly just name):

Benefits:

• Eliminates resource naming conflicts
• Enables true parallel testing
• Improves test isolation
• More reliable CI/CD pipeline