bug(3506): Fix list_item hostname overlap

[patrick-vares-stash]

Closes #3506

[github-actions]

changelog detected ✅

[patrick-vares-stash]

I'm unfortunately not able to run the acceptance tests for this, but I tested it on my terraform and it worked as expected

[jacobbednarz]

acceptance tests all passing

=== RUN   TestAccCloudflareListItem_Basic
=== PAUSE TestAccCloudflareListItem_Basic
=== RUN   TestAccCloudflareListItem_MultipleItems
--- PASS: TestAccCloudflareListItem_MultipleItems (14.66s)
=== RUN   TestAccCloudflareListItem_Update
--- PASS: TestAccCloudflareListItem_Update (14.81s)
=== RUN   TestAccCloudflareListItem_BadListItemType
--- PASS: TestAccCloudflareListItem_BadListItemType (2.06s)
=== RUN   TestAccCloudflareListItem_ASN
--- PASS: TestAccCloudflareListItem_ASN (7.41s)
=== RUN   TestAccCloudflareListItem_Hostname
--- PASS: TestAccCloudflareListItem_Hostname (9.04s)
=== RUN   TestAccCloudflareListItem_Redirect
--- PASS: TestAccCloudflareListItem_Redirect (7.57s)
=== RUN   TestAccCloudflareListItem_RedirectWithOverlappingSourceURL
--- PASS: TestAccCloudflareListItem_RedirectWithOverlappingSourceURL (8.60s)
=== RUN   TestAccCloudflareListItem_WithOverlappingHostname
--- PASS: TestAccCloudflareListItem_WithOverlappingHostname (8.60s)
=== RUN   TestAccCloudflareListItem_IPWithOverlappingPrefix
--- PASS: TestAccCloudflareListItem_IPWithOverlappingPrefix (8.42s)
=== CONT  TestAccCloudflareListItem_Basic
--- PASS: TestAccCloudflareListItem_Basic (11.08s)
PASS
ok  	github.com/cloudflare/terraform-provider-cloudflare/internal/framework/service/list_item	93.398s

[github-actions]

This functionality has been released in v4.39.0 of the Terraform Cloudflare Provider.

Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!