add more datasets for research purpose

[codecov[bot]]

Codecov Report

Merging #63 (b395cdc) into main (fb2c9a2) will increase coverage by 5.47%. The diff coverage is 32.00%.

@@            Coverage Diff             @@
##             main      #63      +/-   ##
==========================================
+ Coverage   26.74%   32.21%   +5.47%     
==========================================
  Files          16       15       -1     
  Lines         632      596      -36     
==========================================
+ Hits          169      192      +23     
+ Misses        463      404      -59     

Impacted Files	Coverage Δ
src/Fetcher.jl	0.00% <0.00%> (ø)
src/Indexer.jl	85.85% <ø> (ø)
src/Utils/password.jl	0.00% <ø> (ø)
src/Collector.jl	96.77% <92.00%> (ø)
src/Requestor.jl	89.47% <100.00%> (ø)
src/ERA5/fetch.jl

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[Yujie-W]

bors r+

[bors[bot]]

Build succeeded:

• docs-build
• macos-latest
• ubuntu-latest
• version-test
• windows-latest