Feature Request: Adding Raspberry Pi x64 Arm/Aarch Support

In order to run kubefirst on a raspberry pi x64, the kubernetes-toolkit project needs to build and serve the appropriate binaries.

Since this project does not use goreleaser, i guess it might be enough to add the architecture to the Dockerfile:

https://github.com/kubefirst/kubernetes-toolkit/blob/982b00a7c17791b207f3b75ccd07e2b2fc1cf86a/Dockerfile#LL3C1-L6C15