Graalpy aarch64 images missing

[theLastOfCats]

At the moment, graalpy-community container build only in amd64 variant

And there is no aarch64-native container, but native graalpy-aarch64 builds exists.

Need to adjust graalpy dockerfile, like it done in Ruby

[liuruibin]

I need this too

[theLastOfCats]

Looks like there is PR already #104