Update Preprepared Dataset to current v15_v2 dataset

[jacobbieker]

Pull Request

Description

Updates preprepared Dataset to work with the current v15_v2 dataset

Fixes #184 Fixes #185 Fixes #187

How Has This Been Tested?

Unit tests

• [ ] Yes

Checklist:

• [ ] My code follows OCF's coding style guidelines
• [ ] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have checked my code and corrected any misspellings

[codecov-commenter]

Codecov Report

Merging #192 (d5ea5a9) into main (e0985e4) will increase coverage by 0.27%. The diff coverage is 52.63%.

@@            Coverage Diff             @@
##             main     #192      +/-   ##
==========================================
+ Coverage   39.18%   39.46%   +0.27%     
==========================================
  Files          47       48       +1     
  Lines        2631     2686      +55     
==========================================
+ Hits         1031     1060      +29     
- Misses       1600     1626      +26     

Impacted Files	Coverage Δ
...erceiver/load_prepared_batches/data_sources/gsp.py	30.76% <40.00%> (+1.35%)	:arrow_up:
...perceiver/load_prepared_batches/data_sources/pv.py	27.65% <40.00%> (+2.07%)	:arrow_up:
...erceiver/load_prepared_batches/data_sources/nwp.py	48.57% <48.57%> (ø)
...er/load_prepared_batches/data_sources/satellite.py	42.42% <50.00%> (+1.04%)	:arrow_up:
...pared_batches/data_sources/prepared_data_source.py	59.64% <85.71%> (+2.78%)	:arrow_up:
...ver/load_prepared_batches/data_sources/__init__.py	100.00% <100.00%> (ø)

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[jacobbieker]

We have changed for OCF Datapipes, so closing this