Warnings in log

Few warnings can be seen in the log e.g.
```
/home/runner/work/omero_search_engine/omero_search_engine/omero_search_engine/api/v1/resources/utils.py:806: DeprecationWarning: The 'body' parameter is deprecated for the 'search' API and will be removed in a future version.
```
This should be looked into