Update references to old projects board

[KarenJewell]

Describe the bug Moving from the old projects board on the the_od_bods repo to the new 2023 board means references and links to the old board need updating

To Reproduce N/A

Expected behavior Locations [x] opendata.scot footer [x] https://opendata.scot/about/ [x] contributing docs [x] old wiki (retired) [x] org repo public README [x] org repo private readme

Screenshots N/A

Hardware and software used N/A

Additional context N/A

[KarenJewell]

All checked. Searched in project also - all good and closing issue.