feat: IaC SARIF output improvements [CFG-1313] [CFG-1314]

[YairZ101]

• Follows CONTRIBUTING rules

What does this PR do?

The snyk CLI generate SARIF output, which is then used for code scanning by GitHub.
We would like to improve our SARIF output which will enhance the UX when using GH code scanning.

How should this be manually tested?

1. Test an IaC file/directory and save the output using snyk-dev iac test {path to the file/directory} --sarif > sarif.snyk
2. Create a test repo and upload the sarif.snyk file to it
3. Configure the Snyk IaC scanning tool in your repo
4. Commit any changes and check the scanning results in the Securit tab.

Any background context you want to provide?

The following Notion page provides additional context.

What are the relevant tickets?

• CFG-1313
• CFG-1314

Screenshots

Before

After

Additional questions

[github-actions]

	Warnings
⚠️	Since the CLI is unifying on a standard and improved tooling, we're starting to migrate old-style imports and exports to ES6 ones. A file you've modified is using either module.exports or require(). If you can, please update them to ES6 import syntax and export syntax. Files found: src/lib/formatters/iac-output.ts

Generated by 🚫 dangerJS against 0eb6429

[teodora-sandu]

LGTM 🎉