Merge 2 uterine leiomyoma mapped traits

[earlEBI]

By user request, and after hearing back from EFO (ticket referenced below), we will need to update all studies (=24) currently annotated with HP_0000131 to MONDO_0007886.

MONDO_0007886 is set to automatically replace the deprecated EFO_0000731 - which is also currently in use in the Catalog.

Here are the GCSTs of the 24 studies currently mapped to HP_0000131.
HP_0000131-studies.txt

To do:

1. Update the mapped term of the 24 studies to MONDO_0007886 once it is added to the database
2. Ensure all study associations are also remapped to this term.

[earlEBI]

created an EFO ticket EBISPOT/efo#2654