fix: raise unexpected error when orderby is empty

[zhaoyongjie]

SUMMARY

currently, Superset raises python unexpected error when orderby missing column.

This PR catch this exception by Marshmallow, I will fix this issue in superset-ui repo

How to reproduce this issue

1. open mixed timeseries chart
2. populate a column to sort by
3. click query button
4. remove existing column from sort by control
5. click query button
6. raise unhashable type error

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

before

after

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #15353 (b73e9e4) into master (352656a) will decrease coverage by 0.14%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #15353      +/-   ##
==========================================
- Coverage   77.16%   77.01%   -0.15%     
==========================================
  Files         973      973              
  Lines       50523    50526       +3     
  Branches     6184     6184              
==========================================
- Hits        38986    38913      -73     
- Misses      11331    11407      +76     
  Partials      206      206              

Flag	Coverage Δ
hive	?
mysql	81.71% <ø> (+<0.01%)	⬆️
postgres	81.73% <ø> (+<0.01%)	⬆️
python	81.81% <ø> (-0.29%)	⬇️
sqlite	81.36% <ø> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
superset/charts/schemas.py	100.00% <ø> (ø)
superset/db_engines/hive.py	0.00% <0.00%> (-82.15%)	⬇️
superset/db_engine_specs/hive.py	69.20% <0.00%> (-17.21%)	⬇️
superset/views/database/mixins.py	81.03% <0.00%> (-1.73%)	⬇️
superset/db_engine_specs/presto.py	83.36% <0.00%> (-1.06%)	⬇️
superset/db_engine_specs/base.py	87.97% <0.00%> (-0.41%)	⬇️
superset/connectors/sqla/models.py	88.22% <0.00%> (-0.24%)	⬇️
superset/utils/core.py	88.97% <0.00%> (-0.09%)	⬇️
superset/viz.py	56.52% <0.00%> (+0.05%)	⬆️

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[villebro]

LGTM