Expected change on regional division codes

[jkiddo]

From

dk-core/input/fsh/codeSystems.fsh

Line 434 in b2a5c9e

Description: "Subdivision codes (Regional codes) used in Denmark as found on https://www.iso.org/obp/ui/#iso:code:3166:DK"

- we'll have to look at https://www.iso.org/obp/ui/#iso:code:3166:DK in 2026 as the migration of regions has effect from January 1st '27 - https://da.wikipedia.org/wiki/Region_%C3%98stdanmark