feat: moved overlay-byocni-up target to tagged ip

[estebancams]

Reason for Change: As part of the security sprint, we are updating all public IPs created to use IPs from Service Tags. Currently the Service Tag our team has requested is still pending, so this PR uses a temporary tag provided for testing: /TestTagging-O365. This PR changes the standalone cluster ARM template to use a bicep file, mainly due to more readable syntax and implementation (especially when adding resource dependencies). The new bicep file will provision the AKS cluster as well as a public IP using a Service Tag, which will be used by the AKS cluster as an outbound IP. This prevents the default cluster creation from creating its own public outbound IP (which doesn't have a Service Tag)

Issue Fixed: Pipeline CNI LSG calls Makefile to create cluster. Updating target

Requirements:

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

Notes: