Fix bom

[NyCodeGHG]

When I submitted the bom in #388 i used the wrong function and the bom is broken and includes all dependencies instead of just setting the version.

[HopeBaron]

What's the difference between the two function calls, shouldn't these be the same?

[NyCodeGHG]

That's what I thought when I submitted the first PR, but there is no api(String, String, String) in the constraints scope, that's the regular api function from the dependencies scope.
In the pom the dependencies are regular dependencies: https://repo1.maven.org/maven2/dev/kord/kord-bom/0.8.0-M7/kord-bom-0.8.0-M7.pom
But it should look like this: https://s01.oss.sonatype.org/content/repositories/snapshots/dev/nycode/github/bom/1.0.0-SNAPSHOT/bom-1.0.0-20211109.142957-14.pom

[HopeBaron]

what about the removal of allowDependencies

[NyCodeGHG]

Thats Gradle's way to prevent you from doing the mistake I did. But I did the mistake anyway. It's only needed when you want to include dependencies in the bom which are not constraint dependencies, when i understood correctly.