[BUG] terraform fails when `use_network_security_groups` is set to `false`

[wkalbar]

Describe the bug When use_network_security_groups is set to false, terraform fails with error:

11:54:42 INFO cli.src.providers.azure.InfrastructureBuilder - Starting step
11:54:42 INFO cli.src.providers.azure.InfrastructureBuilder - Step finished in: 0.01s
11:54:42 ERROR epicli - local variable 'subnet_nsg_association' referenced before assignment
11:54:44 INFO dump_debug_info - Error dump has been written to: /shared/epicli_error_20220601-115442.dump
11:54:44 WARNING dump_debug_info - This dump might contain sensitive information. Check before sharing.
11:54:44 INFO run_time - Total run time: 2.98s

when switched back to true it works fine, with all other settings in config file left unchanged.

How to reproduce Steps to reproduce the behavior:

1. execute epicli init ... (with params)
2. edit config file
3. change use_network_security_groups to false
4. execute epicli apply ...

Expected behavior Working like in previous releases.

Config files Not applicable, just this one option is changed.

Environment

• Cloud provider: Azure

epicli version: 2.0.0

Additional context n/a

---

DoD checklist

• Changelog
  • [x] updated
  • [ ] not needed
• COMPONENTS.md
  • [ ] updated
  • [x] not needed
• Schema
  • [ ] updated
  • [x] not needed
• Backport tasks
  • [ ] created
  • [x] not needed
• Documentation
  • [ ] added
  • [ ] updated
  • [x] not needed
• [ ] Feature has automated tests
• [ ] Automated tests passed (QA pipelines)
  • [x] apply
  • [ ] upgrade
  • [ ] backup/restore
• [x] Idempotency tested
• [x] All conversations in PR resolved

[przemyslavic]

It looks like the subnet_nsg_association variable is not assigned if use_network_security_groups is set to false but it's used later anyway.

[seriva]

Jup, already testing a fix for just that:)