feat(locale): add af_ZA and zu_ZA states

[matthewmayer]

part of #1977

Adds South African states (provinces) in Afrikaans and Zulu

References:
https://af.wikipedia.org/wiki/Provinsies_van_Suid-Afrika

https://zu.wikipedia.org/wiki/Izifundazwe_zaseNingizimu_Afrika

https://www.gov.za/about-sa/south-africas-provinces

[codecov]

Codecov Report

Merging #1983 (c3b39ea) into next (063ba6e) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head c3b39ea differs from pull request most recent head 1d9a824. Consider uploading reports for the commit 1d9a824 to get more accurate results

Additional details and impacted files

@@           Coverage Diff            @@
##             next    #1983    +/-   ##
========================================
  Coverage   99.62%   99.62%            
========================================
  Files        2460     2452     -8     
  Lines      240146   239774   -372     
  Branches     1275     1274     -1     
========================================
- Hits       239235   238882   -353     
+ Misses        888      870    -18     
+ Partials       23       22     -1     

Impacted Files	Coverage Δ
src/locales/af_ZA/location/index.ts	100.00% <100.00%> (ø)
src/locales/af_ZA/location/state.ts	100.00% <100.00%> (ø)
src/locales/zu_ZA/location/index.ts	100.00% <100.00%> (ø)
src/locales/zu_ZA/location/state.ts	100.00% <100.00%> (ø)

... and 130 files with indirect coverage changes

[ST-DDT]

They have a strange naming pattern: Their Nord-West province is east of their Nord province. 🤣

(Or at least the names sound like that is the case)