Fix issues with turnstile widget resource

[Cyb3r-Jak3]

Adds region and bot fight mode to be computed with a new unit test to check
Fix issue where widget could not be updated

Fixes #2412

[Cyb3r-Jak3]

@punkeel

[github-actions]

changelog detected ✅

[punkeel]

[jacobbednarz]

acceptance tests look good!

TF_ACC=1 go test ./internal/framework/service/turnstile -v -count 1 -run ^TestAccCloudflareTurnstileWidget_ -timeout 120m -parallel 1
=== RUN   TestAccCloudflareTurnstileWidget_Basic
=== PAUSE TestAccCloudflareTurnstileWidget_Basic
=== RUN   TestAccCloudflareTurnstileWidget_Minimum
=== PAUSE TestAccCloudflareTurnstileWidget_Minimum
=== CONT  TestAccCloudflareTurnstileWidget_Basic
--- PASS: TestAccCloudflareTurnstileWidget_Basic (17.09s)
=== CONT  TestAccCloudflareTurnstileWidget_Minimum
--- PASS: TestAccCloudflareTurnstileWidget_Minimum (17.90s)
PASS
ok  	github.com/cloudflare/terraform-provider-cloudflare/internal/framework/service/turnstile	35.955s

thanks for the speedy turn around on this one 🙇

[github-actions]

This functionality has been released in v4.6.0 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!