multiple-steps-directories-under-steps

[dron4ik86]

Updated load_step_definitions method to recursively search and load step definition files from nested directories within features/steps. This ensures all step files, even those deeply nested, are correctly recognized and loaded by Behave.
Previously, Behave was skipping feature files in nested structures like this:

features/
    ├── some_feature.feature
    └── steps/
        └── sub_folder_1/
            └── subfolder/
                └── nested_steps.py (Not executed properly)

Enhanced step discovery now encompasses all nested directories, ensuring availability of step definitions at any nesting level for feature tests. Corresponding tests have been added to validate this enhancement.