fix: validation errors appearing after ssh tunnel switch

[hughhhh]

SUMMARY

fixed issues with onBlur validation callbacks when user clicks the ssh tunnel toggle. Main issue was errors were still appearing after the fact when the entire forms needs to be filled out to establish an ssh tunnel connection

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

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

[eschutho]

This looks great. Can we add or update some tests to include this prop?

[codecov]

Codecov Report

Merging #24849 (387c40a) into master (5f10307) will increase coverage by 0.00%.
Report is 2 commits behind head on master.
The diff coverage is 93.10%.

❗ Current head 387c40a differs from pull request most recent head d2d3e22. Consider uploading reports for the commit d2d3e22 to get more accurate results

@@           Coverage Diff           @@
##           master   #24849   +/-   ##
=======================================
  Coverage   68.99%   69.00%           
=======================================
  Files        1904     1904           
  Lines       74081    74108   +27     
  Branches     8193     8193           
=======================================
+ Hits        51115    51137   +22     
- Misses      20845    20850    +5     
  Partials     2121     2121           

Flag	Coverage Δ
javascript	55.82% <100.00%> (-0.01%)	⬇️

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

Files Changed	Coverage Δ
...ses/DatabaseModal/DatabaseConnectionForm/index.tsx	81.81% <ø> (ø)
superset/advanced_data_type/api.py	100.00% <ø> (ø)
superset/annotation_layers/annotations/api.py	89.23% <ø> (ø)
superset/annotation_layers/annotations/schemas.py	100.00% <ø> (ø)
superset/annotation_layers/api.py	86.20% <ø> (ø)
superset/annotation_layers/schemas.py	100.00% <ø> (ø)
superset/async_events/api.py	100.00% <ø> (ø)
superset/available_domains/api.py	100.00% <ø> (ø)
superset/cachekeys/api.py	96.15% <ø> (ø)
superset/charts/api.py	87.82% <ø> (ø)
... and 43 more

... and 1 file with indirect coverage changes

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