fix - terrascan not able to read modules within a subdirectory

[patilpankaj212]

modified the logic to get module path for local source.

tested with:

1. source = "git::https://github.com/terraform-aws-modules/terraform-aws-security-group//modules/http-80?ref=v3.18.0"
2. source = "terraform-aws-modules/security-group/aws//modules/http-80"

[codecov]

Codecov Report

Merging #641 (faa58aa) into master (dfc0d08) will decrease coverage by 0.09%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #641      +/-   ##
==========================================
- Coverage   78.09%   77.99%   -0.10%     
==========================================
  Files         104      104              
  Lines        2597     2586      -11     
==========================================
- Hits         2028     2017      -11     
  Misses        422      422              
  Partials      147      147              

Impacted Files	Coverage Δ
pkg/iac-providers/terraform/commons/load-dir.go	83.07% <100.00%> (-2.45%)	⬇️

[devang-gaur]

fixes #600

[kanchwala-yusuf]

@patilpankaj212 , Would it make sense to add a test in our e2e suite? This would make sure that we do not hit a regression in this critical code path

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication