fix: invalid dataset schema

[zhaoyongjie]

SUMMARY

The owner field in the SqlaTable model should be a Dict instead of an int type. the regression is from PR

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After

open.explore.from.dashboard.mov

TESTING INSTRUCTIONS

should open explore page on dashboard

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• 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 #20826 (108a40b) into master (3954535) will decrease coverage by 0.00%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master   #20826      +/-   ##
==========================================
- Coverage   66.30%   66.30%   -0.01%     
==========================================
  Files        1757     1757              
  Lines       66806    66808       +2     
  Branches     7059     7059              
==========================================
+ Hits        44297    44298       +1     
- Misses      20711    20712       +1     
  Partials     1798     1798              

Flag	Coverage Δ
hive	53.23% <50.00%> (-0.01%)	⬇️
mysql	80.98% <75.00%> (-0.01%)	⬇️
postgres	81.05% <75.00%> (-0.01%)	⬇️
presto	53.09% <50.00%> (-0.01%)	⬇️
python	81.49% <75.00%> (-0.01%)	⬇️
sqlite	79.54% <75.00%> (-0.01%)	⬇️
unit	50.24% <50.00%> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
superset/dashboards/api.py	92.48% <66.66%> (-0.25%)	⬇️
superset/dashboards/schemas.py	99.46% <100.00%> (ø)

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[sadpandajoe]

🏷️ preset:2022.29