Customize loader arguments for evaluation in LightningDataModule

[rusty1s]

No description provided.

[codecov]

Codecov Report

Merging #6450 (c5ab45b) into master (343ba6a) will increase coverage by 0.06%.
The diff coverage is 63.21%.

❗ Current head c5ab45b differs from pull request most recent head 67cd8db. Consider uploading reports for the commit 67cd8db to get more accurate results

@@            Coverage Diff             @@
##           master    #6450      +/-   ##
==========================================
+ Coverage   85.12%   85.19%   +0.06%     
==========================================
  Files         402      402              
  Lines       21708    21744      +36     
==========================================
+ Hits        18479    18524      +45     
+ Misses       3229     3220       -9     

Impacted Files	Coverage Δ
torch_geometric/data/lightning/datamodule.py	68.30% <63.21%> (+8.47%)	⬆️
torch_geometric/loader/utils.py	84.23% <0.00%> (+0.54%)	⬆️

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