fix: Ensure data cleanup in Cypress

[geido]

SUMMARY

As reported in this PR sample data could be hanging between parallel Cypress runs. These changes ensure that all sample data is cleaned up before every test.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

N.A.

TESTING INSTRUCTIONS

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 #21921 (d22465d) into master (7edf1fb) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #21921   +/-   ##
=======================================
  Coverage   66.91%   66.91%           
=======================================
  Files        1807     1807           
  Lines       69142    69142           
  Branches     7394     7394           
=======================================
  Hits        46269    46269           
  Misses      20963    20963           
  Partials     1910     1910           

Flag	Coverage Δ
hive	52.92% <ø> (ø)
javascript	53.33% <ø> (ø)
mysql	78.35% <ø> (ø)
postgres	78.41% <ø> (ø)
presto	52.82% <ø> (ø)
python	81.47% <ø> (ø)
sqlite	76.90% <ø> (ø)
unit	51.07% <ø> (ø)

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[rusackas]

LGTM! Thanks for the stability/cleanup!

[jinghua-qa]

LGTM