fix: change naming convention for count metric on Dataset creation

[hughhhh]

SUMMARY

Change the name of the default metric to COUNT(*) instead of just count

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

[codecov]

Codecov Report

Merging #24609 (4ef77f9) into master (64d728f) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 4ef77f9 differs from pull request most recent head a2a3351. Consider uploading reports for the commit a2a3351 to get more accurate results

@@           Coverage Diff           @@
##           master   #24609   +/-   ##
=======================================
  Coverage   69.09%   69.09%           
=======================================
  Files        1906     1906           
  Lines       74107    74107           
  Branches     8165     8165           
=======================================
  Hits        51207    51207           
  Misses      20777    20777           
  Partials     2123     2123           

Flag	Coverage Δ
hive	54.14% <0.00%> (ø)
mysql	79.48% <100.00%> (ø)
postgres	79.56% <100.00%> (ø)
presto	54.04% <0.00%> (ø)
python	83.53% <100.00%> (ø)
sqlite	78.13% <100.00%> (ø)
unit	54.79% <0.00%> (ø)

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

Impacted Files	Coverage Δ
superset/datasets/commands/create.py	100.00% <100.00%> (ø)

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[sadpandajoe]

🏷️ preset:2023.27