Enhancement - Scan Tests - Include commit support for code analysis scan tests

[Rebits]

Description

Regarding the effort to integrate scan tests into the integration process, it is required to adapt the clone_wazuh_repository fixture, to allow users a commit attribute.

Current behavior

The test_python_flaws receives the branch and the repository to scan. Due to the CI process using commits SHA instead, it is required to add a commit attribute.

Expected behavior

Scan module will accept a commit attribute. This will be None by default. In this case, will use branch value.
In case of setting a committed value, it will search the first branch that contains that commit, making the repository checkout that reference.