[Module Proposal]: `avm-ptn-subscription-service-health-alerts`

### Check for previous/existing GitHub issues/module proposals

- [x] I have checked for previous/existing GitHub issues/module proposals.

### Check this module doesn't already exist in the module indexes

- [x] I have checked for that this module doesn't already exist in the module indexes.

### Bicep or Terraform?

Terraform

### Module Classification?

Pattern Module

### Module Name

avm-ptn-subscription-service-health-alerts

### Module Details

I propose a pattern module to create service health alerts for subscriptions, this module should allow to configure the different types of service health alerts and the different action groups and actions for each alert

### Do you want to be the owner of this module?

No

### Module Owner's GitHub Username (handle)

_No response_

### (Optional) Secondary Module Owner's GitHub Username (handle)

_No response_