[Feature] Add change dataValueSet org unit script

[nshandra]

📌 References

Issue: [22] Data Migration

📝 Implementation

Created a script to move a dataValueSet to a new org unit.

The values can be limited to a date range via the start/end date option. If no start date is provided the script uses 1970-01-01. If no end date is provided the script uses either the last day of the current year or the last day of the year of start date if its in the future.

Its possible to delete the values in the target org unit before moving the values and to delete the values in the source org unit after moving the values.

Usage example:

$ yarn start datavalues change-orgunit \
    --url "http://localhost:8080" --auth "USER:PASSWORD" \
    --dataset-id='Tu81BTLUuCT' --source-orgunit-id='XKKI1hhyFxk' --target-orgunit-id='XKKI1hhyFxK' --start-date='2026-01-01' --end-date='2026-01-31' --delete-target --delete-source --dry-run