chore: Updates auto-generated internal resources

[svc-apix-Bot]

Automatic update of auto-generated resources which are not registered in our provider.
Safe to merge after checks pass.

[augmentcode]

🤖 Augment PR Summary

Summary: Regenerates internal, currently unregistered API resources from a newer Atlas API specification.

Changes:

• Updates cluster and legacy-cluster disk IOPS and throughput descriptions for Gen 2 hardware.
• Refreshes stream connection and stream instance S3 test-bucket descriptions.
• Makes maintenance-window day_of_week optional.
• Adds read-only effective_wave_assignment and configurable wave_assignment attributes.
• Updates generated Terraform schemas and models to reflect those maintenance-window fields.
• Advances the raw and flattened Atlas specification revision SHA.

Technical Notes:

• Most changed Go files are generated from the codegen model definitions.
• The PR does not register these generated resources with the provider.

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[augmentcode]

Review completed. 2 suggestions posted.

Comment augment review to trigger a new review at any time.

[augmentcode]

tools/codegen/models/maintenance_window_api.yaml:26: Making only day_of_week optional prevents the new wave-only maintenance-window use case: hour_of_day remains required, so Terraform cannot configure only group_id and wave_assignment. The existing mongodbatlas_maintenance_window deliberately treats both schedule fields as optional and covers wave-only configuration.

Severity: medium

Other Locations

• internal/serviceapi/maintenancewindowapi/resource_schema.go:24

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[augmentcode]

tools/codegen/models/maintenance_window_api.yaml:151: waveAssignment is nullable and documented as cleared by sending null, but this request-body mode causes the generated marshaller to omit a null value on update. Removing wave_assignment will PATCH without that member, retain the remote assignment, and leave perpetual drift.

Severity: medium

Other Locations

• internal/serviceapi/maintenancewindowapi/resource_schema.go:85

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