Support ACLP related fields in regions

[yec-akamai]

📝 Description

Support ACLP monitors related fields in regions.

✔️ How to Test

Unit and integration test

make test-unit PKG_NAME=region
make test-unit PKG_NAME=regions

make test-int PKG_NAME=region
make test-int PKG_NAME=regions

Manual Test

1. In a sandbox environment, run the following script to list and view a core region

data "linode_regions" "foobar" {
    filter {
    name = "site_type"
    values = ["core"]
  }
}

output "result1" {
  value = data.linode_regions.foobar.regions.0.monitors
}

data "linode_region" "test" {
  id = data.linode_regions.foobar.regions.0.id
}

output "result2" {
  value = data.linode_region.test.monitors
}

2. Observe the outputs display monitors

[yec-akamai]

TODO: revert linodego replacement once the lindoego PR merged

[Copilot]

Pull Request Overview

This PR adds support for ACLP (Alert Correlation and Lifecycle Platform) monitoring fields to the regions data sources in the Terraform provider. The changes enable users to query available monitoring services (alerts and metrics) for each Linode region.

• Adds monitors field to region data structures containing alerts and metrics lists
• Updates parsing methods to accept context and handle diagnostics properly
• Includes comprehensive test coverage for the new monitoring functionality

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
linode/region/framework_models.go	Adds RegionMonitors struct and updates ParseRegion to handle monitors field
linode/region/framework_datasource_schema.go	Defines schema for monitors attribute with alerts and metrics lists
linode/region/framework_datasource.go	Updates to handle diagnostics from ParseRegion method
linode/regions/framework_models.go	Updates parseRegions method signature to accept context
linode/regions/framework_datasource.go	Passes context to parseRegions method call
linode/region/framework_models_unit_test.go	Adds unit tests for monitors field parsing
linode/regions/framework_models_unit_test.go	Adds unit tests for monitors field in regions collection
linode/region/datasource_test.go	Adds acceptance tests for monitors attributes
go.mod	Replaces linodego dependency with custom fork containing monitors support
docs/data-sources/region.md	Documents monitors field and its attributes
docs/data-sources/regions.md	Documents monitors field and its attributes

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