fix: migration out-of-scope bind

[betodealmeida]

SUMMARY

Migration is failing because bind is only defined inside upgrade and downgrade.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

N/A

TESTING INSTRUCTIONS

$ superset db downgrade aea15018d53b
$ superset db upgrade abe27eaf93db

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 #17728 (3966786) into master (485852d) will decrease coverage by 0.16%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #17728      +/-   ##
==========================================
- Coverage   68.11%   67.95%   -0.17%     
==========================================
  Files        1653     1653              
  Lines       66374    66374              
  Branches     7121     7121              
==========================================
- Hits        45211    45104     -107     
- Misses      19266    19373     +107     
  Partials     1897     1897              

Flag	Coverage Δ
hive	?
mysql	82.15% <ø> (?)
postgres	82.20% <ø> (ø)
presto	?
python	82.29% <ø> (-0.36%)	⬇️
sqlite	81.88% <ø> (ø)

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

Impacted Files	Coverage Δ
superset/db_engines/hive.py	0.00% <0.00%> (-85.19%)	⬇️
superset/db_engine_specs/hive.py	70.27% <0.00%> (-16.99%)	⬇️
superset/db_engine_specs/presto.py	83.50% <0.00%> (-6.48%)	⬇️
superset/views/database/mixins.py	81.03% <0.00%> (-1.73%)	⬇️
superset/connectors/sqla/models.py	86.85% <0.00%> (-1.58%)	⬇️
superset/db_engine_specs/base.py	88.29% <0.00%> (-0.39%)	⬇️
superset/utils/core.py	89.64% <0.00%> (-0.12%)	⬇️
superset/models/core.py	89.26% <0.00%> (ø)
superset/views/core.py	77.80% <0.00%> (+0.44%)	⬆️
superset/db_engine_specs/mysql.py	97.61% <0.00%> (+3.57%)	⬆️

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[bkyryliuk]

thanks @betodealmeida