chore: Moves date utils to utils folder

[michael-s-molina]

SUMMARY

Moves date utils to utils folder.

This work is part of SIP-61

TESTING INSTRUCTIONS

1 - Execute all tests
2 - All tests should pass

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 #20192 (6b0b3dd) into master (4674de1) will decrease coverage by 0.00%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##           master   #20192      +/-   ##
==========================================
- Coverage   66.32%   66.32%   -0.01%     
==========================================
  Files        1722     1721       -1     
  Lines       64639    64632       -7     
  Branches     6822     6822              
==========================================
- Hits        42874    42867       -7     
  Misses      20031    20031              
  Partials     1734     1734              

Flag	Coverage Δ
javascript	51.28% <50.00%> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
superset-frontend/src/SqlLab/actions/sqlLab.js	60.39% <ø> (ø)
...ontend/src/SqlLab/components/QuerySearch/index.tsx	73.07% <ø> (ø)
...rontend/src/SqlLab/components/QueryTable/index.tsx	70.17% <ø> (ø)
superset-frontend/src/SqlLab/reducers/sqlLab.js	33.15% <ø> (ø)
...rset-frontend/src/components/Chart/chartReducer.ts	25.00% <ø> (ø)
superset-frontend/src/components/Timer/index.tsx	78.94% <ø> (ø)
...et-frontend/src/dashboard/actions/sliceEntities.js	15.38% <0.00%> (-0.62%)	⬇️
...et-frontend/src/explore/controlPanels/Separator.js	0.00% <ø> (ø)
...et-frontend/src/explore/controlPanels/sections.tsx	100.00% <ø> (ø)
superset-frontend/src/explore/controls.jsx	31.57% <ø> (ø)
... and 3 more

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