@Kristen Pol, I reran the command I used earlier but now on composer 1.9 and ...

@Kristen Pol, I reran the command I used earlier but now on composer 1.9 and got this diff. As you can see, it updates the locked version references for composer-plugin-api.

This is the command: docker run --rm -v {$PWD}:/app -w /app composer:1.9.0 require composer/installers:^1.9 --ignore-platform-reqs

It's functionally same as composer require composer/installers:^1.9 if you have composer 1.9.0 installed locally.