Fix and add tests for Jas Violations

[attiasas]

• The pull request is targeting the dev branch.
• The code has been validated to compile successfully by running go vet ./....
• The code has been formatted properly using go fmt ./....
• All static analysis checks passed.
• All tests have passed. If this feature is not already covered by the tests, new tests have been added.
• Updated the Contributing page / ReadMe page / CI Workflow files if needed.
• All changes are detailed at the description. if not already covered at JFrog Documentation, new documentation have been added.

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depends on:

• Add Violations support for JAS scanners #241
• Catch errors from test cli gorutines through channel jfrog-cli-core#1324

[github-actions]

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🐸 JFrog Frogbot

[github-actions]

Merging this branch will not change overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/jfrog/jfrog-cli-security	0.00% (ø)

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Coverage by file

Changed unit test files

• github.com/jfrog/jfrog-cli-security/audit_test.go
• github.com/jfrog/jfrog-cli-security/xsc_test.go