azurerm_firewall - workaround the destroy failure

[magodo]

This PR added a patch on the Azure track1 SDK to adding the required request header (either Accept: application/json or Content-Type: application/json works), which is recently introduced by the NRP.

Fixes #14966

💤  TF_ACC=1 go test -v -timeout=20h ./internal/services/firewall  -run='TestAccFirewall_basic'
=== RUN   TestAccFirewall_basic
=== PAUSE TestAccFirewall_basic
=== CONT  TestAccFirewall_basic
--- PASS: TestAccFirewall_basic (649.02s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/firewall      649.030s

[tombuildsstuff]

LGTM - thanks for this @magodo

[github-actions]

This functionality has been released in v2.96.0 of the Terraform 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!

[github-actions]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active contributions.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.