State discovery for Terraform cloud

[sundowndev-snyk]

Q	A
🐛 Bug fix?	no
🚀 New feature?	yes
⚠ Deprecations?	no
❌ BC Break	no
🔗 Related issues	CTX-331
❓ Documentation	snyk/driftctl-docs#247

Description

This PR adds state discovery for terraform cloud backend. This was tested with a TFC workspace, using both named and tag-targeted configurations.

What changed

• Moved TestHCL_getCurrentWorkspaceName test suite to hcl_test.go with no changes
• Added support for Cloud block in schema
• The backend block in HCL is not required anymore since Cloud and Backend are mutually exclusive

Notes for the reviewers

• Should we rename the terraform/hcl package to a more relevant name ? I think hcl is a bit too generic for such a specific logic

[codecov-commenter]

Codecov Report

Merging #1563 (58ae9eb) into main (7e5c31f) will decrease coverage by 0.66%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##             main    #1563      +/-   ##
==========================================
- Coverage   83.78%   83.12%   -0.67%     
==========================================
  Files         178      173       -5     
  Lines        6113     5998     -115     
==========================================
- Hits         5122     4986     -136     
- Misses        847      871      +24     
+ Partials      144      141       -3     

Impacted Files	Coverage Δ
pkg/terraform/hcl/hcl.go	87.50% <ø> (ø)
pkg/cmd/scan.go	65.39% <72.72%> (-25.90%)	⬇️
pkg/terraform/hcl/cloud.go	100.00% <100.00%> (ø)
pkg/resource/google/google_compute_network.go	14.28% <0.00%> (-85.72%)	⬇️
pkg/resource/google/google_project_iam_member.go	20.00% <0.00%> (-80.00%)	⬇️
pkg/resource/google/google_storage_bucket.go	25.00% <0.00%> (-75.00%)	⬇️
pkg/resource/init_metadatas.go	0.00% <0.00%> (-53.85%)	⬇️
pkg/output/printer.go	55.55% <0.00%> (-44.45%)	⬇️
pkg/iac/supplier/IacChainSupplier.go	76.08% <0.00%> (-13.05%)	⬇️
... and 11 more

[moadibfr]

LGTM 👍