feat(chart): Added Central Asia countries to countries map

[Zoynels]

SUMMARY

Added Central Asia countries to countries map:

• Kazakhstan
• Kyrgyzstan
• Tajikistan
• Turkmenistan
• Uzbekistan

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

(https://superset.apache.org/docs/miscellaneous/country-map-tools/)

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[codecov]

Codecov Report

Merging #24870 (3870793) into master (1a9c559) will increase coverage by 0.00%.
Report is 2 commits behind head on master.
The diff coverage is n/a.

❗ Current head 3870793 differs from pull request most recent head 68182ac. Consider uploading reports for the commit 68182ac to get more accurate results

@@           Coverage Diff           @@
##           master   #24870   +/-   ##
=======================================
  Coverage   69.00%   69.00%           
=======================================
  Files        1904     1904           
  Lines       74107    74109    +2     
  Branches     8194     8195    +1     
=======================================
+ Hits        51140    51142    +2     
  Misses      20848    20848           
  Partials     2119     2119           

Flag	Coverage Δ
javascript	55.84% <ø> (+<0.01%)	⬆️

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Files Changed	Coverage Δ
...s/legacy-plugin-chart-country-map/src/countries.ts	100.00% <ø> (ø)

... and 1 file with indirect coverage changes

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[john-bodley]

Thanks @Zoynels for adding these.