sure, https://github.com/Jessinra/kemendikbud-strapi this is my app,
I found a workaround yesterday and managed to import successfully, and the step-by-step is written in the README.md
Some things I found out:
Might be the Postgres’s version incompatibility issue:
Heroku use v12.8*, my local Linux use v12.8*, my prod server use dokku (only support v11.6)
reference of solution:
https://github.com/dokku/dokku-postgres/issues/18