Increase Description field max character length

[kabilar]

Fix #295

10,000 characters is about 2-3 single-spaced pages. Based on the OpenScope use case, the dataset descriptions (https://openscopedatafront.web.app/datasets) will fit within 10,000 characters. See here for the context: dandi/dandi-archive#2297.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.24%. Comparing base (782c421) to head (cf7fbb0).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #296      +/-   ##
==========================================
- Coverage   97.88%   93.24%   -4.64%     
==========================================
  Files          16       16              
  Lines        1983     1983              
==========================================
- Hits         1941     1849      -92     
- Misses         42      134      +92     

Flag	Coverage Δ
unittests	93.24% <100.00%> (-4.64%)	⬇️

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[kabilar]

@yarikoptic Not sure why the tests are failing but it appears to be unrelated.

[candleindark]

This change should be fine. However, I think we will get a new JSON schema because of this change. In consts.py, you may want to change DANDI_SCHEMA_VERSION
to "0.6.11" and add "0.6.10" to ALLOWED_INPUT_SCHEMAS

[kabilar]

This change should be fine. However, I think we will get a new JSON schema because of this change. In consts.py, you may want to change DANDI_SCHEMA_VERSION to "0.6.11" and add "0.6.10" to ALLOWED_INPUT_SCHEMAS

Thanks. I have now updated the DANDI_SCHEMA_VERSION.

[kabilar]

Looks like these CI failures are unrelated. Merging.