feat: add bigquery sql validator

[DLT1412]

SUMMARY

add bigquery sql validator on sqllab

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

before:

after:

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• [x ] 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
• [x ] Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 13 lines in your changes missing coverage. Please review.

Project coverage is 83.78%. Comparing base (76d897e) to head (b2bc549).
Report is 1094 commits behind head on master.

Files with missing lines	Patch %	Lines
superset/sql_validators/bigquery.py	48.00%	13 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #31172       +/-   ##
===========================================
+ Coverage   60.48%   83.78%   +23.30%     
===========================================
  Files        1931      537     -1394     
  Lines       76236    38957    -37279     
  Branches     8568        0     -8568     
===========================================
- Hits        46114    32642    -13472     
+ Misses      28017     6315    -21702     
+ Partials     2105        0     -2105     

Flag	Coverage Δ
hive	48.78% <50.00%> (-0.38%)	⬇️
javascript	?
mysql	76.56% <50.00%> (?)
postgres	76.62% <50.00%> (?)
presto	53.28% <50.00%> (-0.52%)	⬇️
python	83.78% <50.00%> (+20.30%)	⬆️
sqlite	76.08% <50.00%> (?)
unit	60.86% <50.00%> (+3.24%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[sadpandajoe]

@DLT1412 thanks for the PR. Do you mind adding tests for this?

[sadpandajoe]

We also noticed that the validation error isn't show but the request api response is shown instead.