fix: DTOSS-9703 update diagnostic settings module

[MacMur85]

Description

A change to the implementation of the Diagnostic Setting module required to eliminate the deprecated form of metric definition.

Old implementation:

module "diagnostic-settings" {
  source = "../diagnostic-settings"

  name                       = "${var.name}-diagnostic-setting"
  target_resource_id         = azurerm_api_management.apim.id
  log_analytics_workspace_id = var.log_analytics_workspace_id
  enabled_log                = var.monitor_diagnostic_setting_apim_enabled_logs
  metric                     = var.monitor_diagnostic_setting_apim_metrics
  metric_enabled             = var.metric_enabled
}

New implementation:

module "diagnostic-settings" {

  source = "../diagnostic-settings"

  name                       = "${var.name}-diagnostic-setting"
  target_resource_id         = azurerm_api_management.apim.id
  log_analytics_workspace_id = var.log_analytics_workspace_id
  enabled_log                = var.monitor_diagnostic_setting_apim_enabled_logs
  enabled_metric             = var.monitor_diagnostic_setting_apim_metrics

}

Context

This PR is tied to a similar one in the Templates repository: PR-220

Type of changes

• Refactoring (non-breaking change)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would change existing functionality)
• Bug fix (non-breaking change which fixes an issue)

Checklist

• I am familiar with the contributing guidelines
• I have followed the code style of the project
• I have added tests to cover my changes
• I have updated the documentation accordingly
• This PR is a result of pair or mob programming

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[github-actions]

Unit Test Results

✔️ Tests 779 / 779 - passed in 61.3s
📝 Coverage 56.81%
📏 4244 / 7338 lines covered 🌿 1014 / 1918 branches covered
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✏️ updated for commit 26e39ed

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud