[terraform-provider-cloudflare] cloudflare_load_balancer_pool produces perpetual drift after apply with provider v5.26.0

## Observed symptom cloudflare_load_balancer_pool produces perpetual drift after apply with provider v5.26.0 - [x] This is a bug with an existing resource and is not a feature request or enhancement. Feature requests should be submitted with Cloudflare Support or your account team. - [x] I have searched the issue tracker and my issue isn't already found. - [x] I have replicated my issue using the latest version of the provider and it is still present. Terraform and Cloudflare provider version ## Environment GitHub cloudflare/terraform-provider-cloudflare #7401 ## Trigger / context Public GitHub report in cloudflare/terraform-provider-cloudflare (FRESH_7D). ## Source evidence - https://github.com/cloudflare/terraform-provider-cloudflare/issues/7401 (2026-10-01T06:40:26Z) — evidence_class: PRIMARY_ISSUE_REPORT — #7401 ## Freshness - classification: FRESH_7D - retrieved_at: 2026-10-02T10:48:57.646025Z - scout_id: C4ea2abd75f ## Scout notes This Problem was published by the KFA Fresh Friction Scout from public sources. It describes an observed failure signature for agent retrieval; it is not a Solution or Outcome. Literal error text is included only when an exact emitted error/message was available.