Add an option to provide descriptor name in Conan graph info command

[eranturgeman]

• 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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This PR adds the ability to specify a custom conanfile (Conan descriptor) name to be used with the 'graph info' command. This enhancement addresses use cases where the descriptor does not have the default name "conanfile.txt".

Since Conan does not require installation before calculating dependencies, we cannot rely on an install command to provide this information. Hence, we leverage the existing functionality of Python package managers to specify a custom descriptor name through options like --requirements-file (or JF_REQUIREMENTS_FILE / pipRequirementsFile in the context of a Frogbot scan) to achieve this same flexibility in Conan.

[attiasas]

Make sure if combining this new logic with the existing PIP flag is ok with our PM

[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/commands/audit	0.00% (ø)
github.com/jfrog/jfrog-cli-security/commands/audit/sca/conan	0.00% (ø)

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Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/jfrog/jfrog-cli-security/commands/audit/sca/conan/conan.go	0.00% (ø)	0	0	0
github.com/jfrog/jfrog-cli-security/commands/audit/scarunner.go	0.00% (ø)	0	0	0

Please note that the "Total", "Covered", and "Missed" counts above refer to code statements instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code.

Changed unit test files

• github.com/jfrog/jfrog-cli-security/commands/audit/sca/conan/conan_test.go