GDX-specific ISOs dont build due to workaround in nvidia driver installation

[tulilirockz]

This workaround makes it so bootc-image-builder gets mad due to "duplicate dependencies" and stops the build. We might want to add an exclusion for GDX and make it so it uses the regular image then updates to gdx by default, we just need to change the image on the ISO building, after a single update the image should rebase itself to gdx just fine