make aws.s3 suggested (#583)

[bart1]

Resolve #583 wait for lets wait for #579 and then resolve conflicts

[codecov]

Codecov Report

Merging #584 (da1f2bc) into master (57085a3) will increase coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head da1f2bc differs from pull request most recent head c26aaf5. Consider uploading reports for the commit c26aaf5 to get more accurate results

@@            Coverage Diff             @@
##           master     #584      +/-   ##
==========================================
+ Coverage   67.89%   67.90%   +0.01%     
==========================================
  Files          58       58              
  Lines        3152     3153       +1     
==========================================
+ Hits         2140     2141       +1     
  Misses       1012     1012              

Impacted Files	Coverage Δ
R/download_pvolfiles.R	93.44% <100.00%> (+0.10%)	⬆️

[bart1]

As #579 is prepared for this ( b2d42c3 ). This can now be merged

[PietrH]

Agree to make aws.s3 suggested, I'll make some changes to #579 to reduce merge conflicts.