fix: bump min version of elastic search

[AAfghahi]

SUMMARY

with our change to sql alchemy 1.4 we need to change the minimum version of elastic search because older versions don't work with 1.4.

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

[codecov]

Codecov Report

Merging #21274 (6442fd2) into master (0c87ff7) will decrease coverage by 11.38%.
The diff coverage is 82.30%.

❗ Current head 6442fd2 differs from pull request most recent head 3d21cb0. Consider uploading reports for the commit 3d21cb0 to get more accurate results

@@             Coverage Diff             @@
##           master   #21274       +/-   ##
===========================================
- Coverage   66.41%   55.03%   -11.39%     
===========================================
  Files        1784     1784               
  Lines       68185    68232       +47     
  Branches     7265     7265               
===========================================
- Hits        45284    37550     -7734     
- Misses      21032    28813     +7781     
  Partials     1869     1869               

Flag	Coverage Δ
hive	52.99% <60.00%> (-0.03%)	⬇️
postgres	?
presto	52.89% <60.00%> (-0.03%)	⬇️
python	57.74% <82.30%> (-23.56%)	⬇️
sqlite	?
unit	50.75% <81.53%> (+0.11%)	⬆️

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

Impacted Files	Coverage Δ
superset/datasets/commands/delete.py	48.57% <ø> (-44.62%)	⬇️
superset/databases/commands/update.py	26.08% <25.00%> (-65.15%)	⬇️
superset/security/manager.py	61.39% <87.50%> (-33.69%)	⬇️
superset/connectors/sqla/models.py	77.76% <100.00%> (-12.74%)	⬇️
superset/datasets/commands/create.py	31.25% <100.00%> (-66.79%)	⬇️
superset/models/core.py	78.48% <100.00%> (-9.70%)	⬇️
superset/utils/dashboard_import_export.py	0.00% <0.00%> (-100.00%)	⬇️
superset/key_value/commands/update.py	0.00% <0.00%> (-88.89%)	⬇️
superset/key_value/commands/delete.py	0.00% <0.00%> (-85.30%)	⬇️
superset/key_value/commands/delete_expired.py	0.00% <0.00%> (-80.77%)	⬇️
... and 286 more

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