chore: Sets the DRILL_BY feature flag to True by default

[michael-s-molina]

SUMMARY

As part of the 4.0 approved initiatives, this PR sets the DRILL_BY feature flag to True by default given that the feature has been tested for a while and reached a stable state.

TESTING INSTRUCTIONS

CI.

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

All modified and coverable lines are covered by tests ✅

Comparison is base (7ca6d8c) 69.18% compared to head (33dfc6f) 69.04%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #26637      +/-   ##
==========================================
- Coverage   69.18%   69.04%   -0.14%     
==========================================
  Files        1948     1938      -10     
  Lines       76036    75609     -427     
  Branches     8478     8478              
==========================================
- Hits        52604    52205     -399     
+ Misses      21265    21237      -28     
  Partials     2167     2167              

Flag	Coverage Δ
hive	53.58% <ø> (-0.11%)	⬇️
mysql	77.86% <ø> (-0.19%)	⬇️
postgres	77.98% <ø> (-0.19%)	⬇️
presto	53.53% <ø> (-0.11%)	⬇️
python	82.73% <ø> (-0.13%)	⬇️
sqlite	77.57% <ø> (-0.19%)	⬇️
unit	55.81% <ø> (-0.08%)	⬇️

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