Downgrade default CLI version

[EyalDelarea]

• All tests passed. If this feature is not already covered by the tests, I added new tests.
• I used npm run format for formatting the code before submitting the pull request.

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Why

This PR downgrades the default JFrog CLI version used in the action to avoid breaking existing workflows that rely on the setup-jfrog-cli step outputs — specifically those related to OIDC authentication.

In recent CLI versions, the OIDC token exchange logic was moved inside the CLI itself. As a result, the access token is no longer exposed via step outputs, which broke pipelines that depended on this behavior.

What’s Changing

• Downgrade the default CLI version to restore the previous behavior where the access token is available as a step output.