chore: Allow auto pruning of the query table

[michael-s-molina]

SUMMARY

Enhance the Celery configuration to allow auto pruning of the query table. By default, no pruning is executed but admins now have the option to configure a schedule and retention period in days for the table's records.

TESTING INSTRUCTIONS

1 - Add the required configuration
2 - Check the job execution

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

Attention: Patch coverage is 34.88372% with 28 lines in your changes missing coverage. Please review.

Project coverage is 83.64%. Comparing base (76d897e) to head (752fbb7).
Report is 966 commits behind head on master.

Files with missing lines	Patch %	Lines
superset/commands/sql_lab/query.py	35.29%	22 Missing ⚠️
superset/tasks/scheduler.py	33.33%	6 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #29936       +/-   ##
===========================================
+ Coverage   60.48%   83.64%   +23.15%     
===========================================
  Files        1931      528     -1403     
  Lines       76236    38148    -38088     
  Branches     8568        0     -8568     
===========================================
- Hits        46114    31910    -14204     
+ Misses      28017     6238    -21779     
+ Partials     2105        0     -2105     

Flag	Coverage Δ
hive	48.95% <34.88%> (-0.22%)	⬇️
javascript	?
mysql	76.64% <34.88%> (?)
postgres	76.74% <34.88%> (?)
presto	53.48% <34.88%> (-0.32%)	⬇️
python	83.64% <34.88%> (+20.15%)	⬆️
sqlite	76.22% <34.88%> (?)
unit	60.31% <0.00%> (+2.68%)	⬆️

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[justinpark]

LGTM