fix: catch exception when create connection

[zhaoyongjie]

SUMMARY

In Google bigquery, if credential is not set, it will raise a DefaultCredentialsError, I guess different dialects, will have some custom error types, so here to catch all errors.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After:

TESTING INSTRUCTIONS

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 #16692 (acc079d) into master (ad60c0c) will decrease coverage by 0.07%.
The diff coverage is 63.68%.

❗ Current head acc079d differs from pull request most recent head c1a7a54. Consider uploading reports for the commit c1a7a54 to get more accurate results

@@            Coverage Diff             @@
##           master   #16692      +/-   ##
==========================================
- Coverage   76.93%   76.86%   -0.08%     
==========================================
  Files        1007     1007              
  Lines       54112    54141      +29     
  Branches     7346     7374      +28     
==========================================
- Hits        41633    41614      -19     
- Misses      12239    12287      +48     
  Partials      240      240              

Flag	Coverage Δ
hive	?
mysql	81.71% <56.41%> (+0.06%)	⬆️
postgres	81.81% <56.41%> (+0.10%)	⬆️
presto	81.65% <56.83%> (+0.10%)	⬆️
python	82.07% <56.83%> (-0.19%)	⬇️
sqlite	81.42% <56.41%> (+0.10%)	⬆️

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

Impacted Files	Coverage Δ
...rontend/src/components/Select/DeprecatedSelect.tsx	82.35% <0.00%> (-3.37%)	⬇️
...ntend/src/explore/components/ExploreChartPanel.jsx	14.28% <0.00%> (-0.72%)	⬇️
superset/db_engines/hive.py	0.00% <0.00%> (-82.15%)	⬇️
superset/utils/webdriver.py	80.89% <0.00%> (-0.92%)	⬇️
superset/views/base.py	75.65% <42.85%> (-0.86%)	⬇️
superset/viz.py	57.85% <44.38%> (+0.42%)	⬆️
...perset-frontend/src/addSlice/AddSliceContainer.tsx	60.00% <50.00%> (+3.07%)	⬆️
superset/db_engine_specs/bigquery.py	86.84% <66.66%> (-0.92%)	⬇️
...ontrols/DndColumnSelectControl/DndFilterSelect.tsx	51.97% <75.00%> (+0.64%)	⬆️
superset/tasks/async_queries.py	96.96% <90.90%> (ø)
... and 39 more

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[villebro]

Very nice, LGTM!