Geoenrich

Bug fixes:
- Fixed bug that occurred when requesting data for surface points in 'nearest_lower' mode.

New functions
- Added possibility to merge duplicate variables in geoenrich.exports.collate_npy
- Added population density and distance to port

Bug fixes:
- Fixed issue that occured when degenerate dimensions are present in remote netcdf file

New functions:
- Accept semicolon delimited CSV files for personal variable catalogs
- Use closest lower depth instead of closest depth to stay in the water column

Bug fixes:
- Fixed metadata generation when downlaoding Copernicus data

New functions:
- Added support for the new Copernicus data store (using copernicusmarine API)
- Added Support for 'nearest' mode for data recovery at depth.

New functions:
- Updated requirements in the cfg file to allow for more recent package versions.
- Pandas must now be in a version >=2.0.0.
- Added new source for ph.
- Unfortunately we had to remove SST-MUR due to a substantial change in PODAAC data access possibilities.
- Changed *sample* argument to *slice* in geoenrich.exports.collate_npy.

Bug fixes:
- Removed infer_datetime_format from pandas.to_datetime calls as it is deprecated.