Remove SIP path from SIP metadata validation

[DanielCosme]

This MR will remove the absolute path from the Validate SIP metadata activity.

Continuation of: https://github.com/artefactual-sdps/preprocessing-sfa/issues/59#issuecomment-2460199726

Previously:

Now:

[codecov[bot]]

Codecov Report

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

Project coverage is 60.20%. Comparing base (7dd47ca) to head (8ace35d). Report is 9 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #87 +/- ## ========================================== + Coverage 53.48% 60.20% +6.71% ========================================== Files 29 29 Lines 2023 1985 -38 ========================================== + Hits 1082 1195 +113 + Misses 869 696 -173 - Partials 72 94 +22 ```

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