fix(viz): correct duplicate/incorrect ISO codes in Iran country map

[rusackas]

SUMMARY

Tehran and Alborz provinces in iran.geojson were both mapped to IR-07, and Razavi Khorasan was mapped to IR-30 (Alborz's real code), leaving IR-09 unused entirely. That made it impossible to color Tehran and Alborz independently in the country map viz, and any data keyed on IR-09 (Razavi Khorasan) or IR-30 (Alborz) would land on the wrong province. This matches what came up in #31991: Alborz now gets IR-30 and Razavi Khorasan gets IR-09, per ISO 3166-2:IR. Tehran keeps IR-07.

Added a unit test that pins this down going forward by asserting every province in the geojson has a unique ISO code and that the three provinces in question map correctly.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

N/A, this only touches the underlying geojson data, not rendering code.

TESTING INSTRUCTIONS

npm run test -- plugins/legacy-plugin-chart-country-map/test/countries/iran.test.ts

Or build a country map chart with country set to Iran and confirm Tehran and Alborz can be colored independently.

ADDITIONAL INFORMATION

• Has associated issue: duplicate iso code in iran's country map #31991
• Required feature flags:
• Changes UI
• Includes DB Migration
• Introduces new feature or API
• Removes existing feature or API

Fixes #31991

[bito-code-review]

Code Review Agent Run #bc4e51

Actionable Suggestions - 0

Review Details

• Files reviewed - 1 · Commit Range: 85a4903..85a4903

  • superset-frontend/plugins/legacy-plugin-chart-country-map/test/countries/iran.test.ts
• Files skipped - 0
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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 65.23%. Comparing base (ba0900d) to head (85a4903).

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #42439   +/-   ##
=======================================
  Coverage   65.23%   65.23%           
=======================================
  Files        2795     2795           
  Lines      157694   157694           
  Branches    36067    36067           
=======================================
  Hits       102871   102871           
  Misses      52847    52847           
  Partials     1976     1976           

Flag	Coverage Δ
javascript	71.27% <ø> (ø)

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