Fix for a resource contention in a parallel tests execution

[eranturgeman]

• [x] All tests passed. If this feature is not already covered by the tests, I added new tests.
• [x] This pull request is on the dev branch.
• [x] I used gofmt for formatting the code before submitting the pull request.

• [x] Update documentation about new features / new supported technologies

As a part of our tests automation & improvement process we created a pipeline to execute Frogbot tests automatically and in parallel. Two of those tests had contention over a mutual resource (analyzer manager) which was downloaded to the same place in both of them. In order to fix it, we work in a temp JfrogHome for each of the tests so they will use two different instances of the analyzer manager. The correction of the fix were verified in the pipeline:

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