chore: remove unnecessary requirement in identification swf

## Problem
In the identification summary workflow, the `pyranges` requirement is currently specified in the requirements:
https://github.com/iRNA-COSI/APAeval/blob/50fb980e76b326ae0daae0bf9f1783886b26fc66/summary_workflows/identification/identification_dockers/i_metrics/requirements.txt#L5

But this is not necessary, as this requirement is part of the module *apaeval*:
https://github.com/iRNA-COSI/APAeval/blob/50fb980e76b326ae0daae0bf9f1783886b26fc66/utils/apaeval/setup.py#L6

## Solution
For consistency with the quantification summary workflow, `pyranges` should be removed from `summary_workflows/identification/identification_dockers/i_metrics/requirements.txt`.