fix(terraform): resolve counted IAM policy documents

[omribz156]

Closes #8050

Reason for Proposed Changes

• The Terraform parser resolved data.aws_iam_policy_document.<name>.json, but counted policy documents referenced as data.aws_iam_policy_document.<name>[0].json stayed unresolved and could make S3 Bucket Policy Accepts HTTP Requests report a false positive.

Proposed Changes

• Store counted IAM policy documents as indexed values in the Terraform data-source evaluation map.
• Ignore Terraform data-source meta-arguments while decoding IAM policy document bodies, so count does not break policy JSON generation.
• Add parser and query regression coverage for a counted S3 bucket policy that denies insecure transport.

Verification:

• go test ./pkg/parser/terraform -count=1
• go test ./test -run 'TestQueries/.*s3_bucket_policy_accepts_http_requests_negative' -count=1
• go run ./cmd/console/main.go scan -p assets/queries/terraform/aws/s3_bucket_policy_accepts_http_requests/test/negative9.tf -q assets/queries/terraform/aws/s3_bucket_policy_accepts_http_requests --type Terraform --disable-secrets --no-progress --silent --report-formats json --output-path .tmp-kics-output --output-name negative9 --ignore-on-exit results returned total_counter: 0.

This was implemented with Codex assistance, with the patch kept focused and manually reviewed.

I submit this contribution under the Apache-2.0 license.