Switch Archive Download to Git Clone in scan-pr

[eranturgeman]

• All tests passed. If this feature is not already covered by the tests, I added new tests.
• This pull request is on the dev branch.
• I used gofmt for formatting the code before submitting the pull request.
• Update documentation about new features / new supported technologies

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A customer had an issue where the scan failed in a Gradle project scan, because the downloaded repo (archive download) did not contain .git dir.
Gradle evaluates all build.gradle scripts during its configuration phase, before reaching generateDepTrees. One of the scripts required a .git dir which does not exist in an archive download.
The fix is simple - switching the usage of archive download with git clone.
This is a bit slower but fixes the issue easily.

[github-actions]

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