Temporary workaround: prevent upload of files larger than 67108864000

[yarikoptic]

See dandi/dandiarchive-legacy#517 for more information

If looks kosher and doesn't break anything, we should get it into the masses, unless we find a proper solution to that issue.

we might want to announce all prior versions of dandi-cli as "bad" in .et

[codecov]

Codecov Report

Merging #303 (66af6ce) into master (511143d) will decrease coverage by 0.09%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #303      +/-   ##
==========================================
- Coverage   81.88%   81.79%   -0.10%     
==========================================
  Files          54       54              
  Lines        4886     4889       +3     
==========================================
- Hits         4001     3999       -2     
- Misses        885      890       +5     

Flag	Coverage Δ
unittests	81.79% <66.66%> (-0.10%)	⬇️

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Impacted Files	Coverage Δ
dandi/upload.py	71.08% <66.66%> (-0.06%)	⬇️
dandi/cli/cmd_organize.py	77.30% <0.00%> (-2.46%)	⬇️

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[satra]

i think we should fix the issue because we will be getting TB size files from the U01 project.

[satra]

we can do a quick fix to limit it, but we should fix it urgently.

[yarikoptic]

I know that it should be fixed urgently... but we also should prevent data loss on uploads which might happen meanwhile, and may be fix isn't trivial. I will wait until the end of the day and then proceed/merge.