fix: update netlify build and netlify config (#7333)

* feat: drop support for node 18.x and 19.x

* feat: minimum version of 20.12.2

* feat: remove mention of 18.17.0 and 18.13.0

* fix: update netlify build and netlify config

* fix: next js check

---------

Co-authored-by: Karin <=>

Author: khendrikse