fix: set reference to columns properly for sqllab -> explore

[hughhhh]

SUMMARY

Fixing small bug with new query to explore feature, the payload lives in results instead of the upper level component

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

[eric-briscoe]

Looks Good

[codecov]

Codecov Report

Merging #20747 (fd5c798) into master (5990ea6) will not change coverage.
The diff coverage is n/a.

❗ Current head fd5c798 differs from pull request most recent head 29d45fa. Consider uploading reports for the commit 29d45fa to get more accurate results

@@           Coverage Diff           @@
##           master   #20747   +/-   ##
=======================================
  Coverage   66.34%   66.34%           
=======================================
  Files        1754     1754           
  Lines       66673    66673           
  Branches     7049     7049           
=======================================
  Hits        44231    44231           
  Misses      20645    20645           
  Partials     1797     1797           

Flag	Coverage Δ
javascript	51.93% <ø> (ø)

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

Impacted Files	Coverage Δ
...frontend/src/SqlLab/components/ResultSet/index.tsx	54.07% <ø> (ø)

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