fix: Update CKV_AZURE_164 to correct check on trust policy

[paddymorgan84]

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Dear maintainer, below is a concise technical summary of the changes proposed in this PR:

Update the ACRUseSignedImages class to correct the trust policy check by modifying the inspected key and expected value. Adjust the Terraform test files to align with the new trust policy structure by replacing trust_policy blocks with trust_policy_enabled attributes.

Topic	Details
Trust Policy Fix	Correct the trust policy check in the ACRUseSignedImages class to ensure accurate validation of Azure Container Registry configurations. Modified files (1) checkov/terraform/checks/resource/azure/ACRUseSignedImages.py Latest Contributors(1) Email Commit Date james.woolfenden@gmail... feat-terraform-Azure-u... November 27, 2022
Test File Update	Update Terraform test files to reflect the new trust policy structure by replacing trust_policy blocks with trust_policy_enabled attributes. Modified files (2) tests/terraform/checks/resource/azure/example_ACRUseSignedImages/main.tf tests/terraform/checks/resource/azure/example_ACRGeoreplicated/main.tf Latest Contributors(2) Email Commit Date james.woolfenden@gmail... feat-terraform-new-azu... December 28, 2022 [email protected] chore-merge-Azure-ACR-... November 28, 2022

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