Refactor code to use a function to create the inter-rp dataframes

[datejada]

Pull request details

Describe the changes made in this pull request

Refactor the code to improve the readability and creation of the dataframes for the inter-rp constraints.

List of related issues or pull requests

Closes #659

Collaboration confirmation

As a contributor I confirm

• [x] I read and followed the instructions in README.dev.md
• [NA] The documentation is up to date with the changes introduced in this Pull Request (or NA)
• [x] Tests are passing
• [x] Lint is passing

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (5aee7e5) to head (ccf4226). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #671 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 16 16 Lines 788 785 -3 ========================================= - Hits 788 785 -3 ```

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