Add workflow for running populate_dandiset_yaml.py

[jwodder]

Closes #361.

[codecov]

Codecov Report

Merging #363 (63179f5) into master (53da9e9) will increase coverage by 0.51%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #363      +/-   ##
==========================================
+ Coverage   82.15%   82.67%   +0.51%     
==========================================
  Files          55       55              
  Lines        5454     5771     +317     
==========================================
+ Hits         4481     4771     +290     
- Misses        973     1000      +27     

Flag	Coverage Δ
unittests	82.67% <ø> (+0.51%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
dandi/download.py	84.53% <0.00%> (-0.66%)	⬇️
dandi/dandiapi.py	85.71% <0.00%> (-0.50%)	⬇️
dandi/upload.py	74.36% <0.00%> (+4.51%)	⬆️
dandi/models.py	89.37% <0.00%> (+4.73%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 53da9e9...63179f5. Read the comment docs.