Create multi scan id before running audit command

[orz25]

• 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.

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Add a call to xsc git info api before running audit in order to have one multi scan id to multiple sca scans (we send a scan request per technology and we wish to associate all the scans to one multi scan id).

PRs for client-go and cli-security:
clent-go: jfrog/jfrog-client-go#898
cli-security: jfrog/jfrog-cli-security#20

[attiasas]

What about adding the multiscanid for scanning Pull requests? you didn't take into account this command with your changes.

[github-actions]

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